exprienced Metallurgist

Dajun Chen

PERMANENT HOME ADDRESS:

*** ******* ****

Bolingbrook, IL 60440

Tel (Home): 630-***-****

Cell: 630-***-****

E-MAIL:

*****@*******.***

RESIDENTIAL STATUS:

Permanent Resident of the United States of America (Green Card Holder)

PROFESSIONAL HISTORY

. GERDAU Long Steel North America, Joliet Mill, Joliet, IL (Dec. 2011 -

Dec. 2013)

Job Title: QA Manager, Metallurgist

Responsibilities:

. Responsible for providing support in the coordination and

evaluation of external and internal customer requirements in

accordance with the capacities and capabilities of the

production department and ancillary service departments

(process and product metallurgy, material handling

marketing).

. Responsible for new finish goods SKU creation in SAP, as well

as the completion of BOM, Routing and Production version for

Production and Quality. Maintaining the Master Date of all

the finish Goods SKUs, as well as billet SKUs for the entire

plant.

. Responsible primarily for the metallurgical failure analysis,

identification, evaluation, and implementation of product and

process enhancement opportunities take actions in planning,

supervision, evaluation, and reporting of product trail and

investigations on site and outside facilities.

. Supervises non-exempt metallurgical technicians and provides

technical training and guidance to employees; manager the

plant Met Lab and directing and training lab technicians in

different kinds of metal tests; responsible for the Metal

certs of all the products.

. Supervises plant re-work team, emphasis on inspection product

quality and meeting customer's requirements

. Visit customers when there is a technical problem with the

product or quality iss, and determine the nature of the

problem, inspect the product to determine resolution

pertaining to material disposition and implementation of

corrective action procedures

. Actively participate in developing and auditing of work

standards pertaining product quality; keep up to date with

ASTM specifications and activities.

. Responsible for ISO audit, internal audit and GBS Quality

assessments.

. Training fellow employees and teaching (course: Metallurgy

for Non-Metallurgist)

. Sherry Laboratories, Daleville, IN (Oct. 2010 - Dec. 2011)

Job Title: Senior Metallurgical Engineer

Responsibilities:

. Perform microstructure and other metallurgically related

evaluations of variety metallic material (including steels,

cast irons, superalloys, titanium alloys, aluminum alloys,

cobalt and cobalt/nickel alloys, as well as copper alloys,

magnesium alloys, and others) for conformance to industrial

standards, and the evaluations including: Microstructure,

Grain Size and Distribution, Case Depth, IGA/IGO,

Plating/Coating/ Thermal Spray Thickness, Surface

Contamination (Alpha Case and Surface Oxidation), High

Temperature Oxidation/Eutectic Melting, EDM/Laser Machining

Related Recast, Welding and HAZ, Microhardness, and

Microstructure Image Analysis

. Failure analysis, manufacturing processing, analysis of

engineering parts and structures, and reverse engineering

. Metallurgical technical support to marketing and customer

service departments

. Interpret technical documents, specifications, and related

instructions

. Technical and contract review

. Training fellow employees and teaching (course: Metallurgy

for Non-Metallurgist)

. Alcoa Forgings and Extrusions (former Alcoa Global Hard Alloy

Extrusions), Massena Operations, Massena, New York (Sept. 2008 - Oct.

2010)

Job Title: Senior Metallurgist in Quality Assurance and Customer

Service Dept.

Plant Advanced Planner

Responsibilities:

. Provide metallurgical on extrusion and fabricating processes

engineering support to production/product lines to meet or

exceed applicable specifications and customer needs at low

cost

. Using statistical analysis and other data-based decision

making tools to maintain and improve product/process quality,

process efficiency, and reduce costs

. Apply metallurgical analysis and investigate individual

quality issues, seeking out and addressing

quality/metallurgical/process support and project needs

. Develop, maintain, improve, and optimize new and exist

manufacturing procedures (including extrusion, heat treatment

and fabrication) for the entire plant to produce product at

lowest cost and high efficiency while meeting or exceeding

customer and other applicable specifications

. Provide direct technical support to sales and marketing

department through product development and technical

resourcing, and functionally translate customer needs into

manufacturing processes capable to meet those customer needs

. Illinois Institute of Technology (IIT), Chicago, Illinois (Apr. 2002

- Sept. 2008)

Job Title: Assistant Research Professor in Materials Science and

Metallurgical Engineering and Thermal Processing Technology

Center (TPTC) at Mechanical, Materials and Aerospace

Engineering Dept. (MMAE)

Manager of Materials Science and Metallurgical Engineering

Laboratories

Responsibilities:

. Teaching several courses for graduate students and

undergraduate students in materials science and metallurgical

engineering including: Ferrous Transformation,

Microstructural Characterization, Scanning Electron

Microscopy, Transmission Electron Microscopy, Gas-Metal

Reaction & Surface Hardening Treatment of Steels,

Manufacturing Processes of Engineering Materials, Dislocation

Theory and Strengthening Mechanism of Materials, Materials

Laboratory I and II, and Advanced Materials Laboratory

. Supervising, managing and maintaining all the Materials

Science and Metallurgical Engineering Labs (including:

Electron Microscope Lab, Metallography Lab, Heat Treatment

Lab, Mechanical Testing Lab, and Advanced Thermal Processing

Lab) and student training

. Consulting (for industrial companies and service firms in

microstructure characterization, manufacturing processes,

quality control issues, materials and component failure

analysis, electron microscopy analysis, and x-ray micro-

chemical analysis

. Advise graduate students (PhD and MS) in materials science

and engineering/metallurgical engineering research projects

Research areas: electron microscopy theory and operation,

materials microstructure characterization and analysis, phase

transformation theory and applications, materials fracture

mechanics and failure analysis, mechanical properties testing

methodology, relationship between microstructure and properties

of engineering materials, materials manufacturing processes

Research projects conducted:

. Research Project with Dana Holding Corporation: bainitic

phase transformation mechanism of steel and applications in

industry

. Research Project with Penn Aluminum International Inc.:

improving productivity & quality in extrusion of non-heat

treatable aluminum alloy 3003 tubes used in automotive

. Research Project with Alion Science and Technology

Corporation: microstructural characterization, molten-pool

and heat-affected zone simulation, and chemical composition

and dilution effect of laser cladding of Cu-30Ni alloy

. Research Project with Werner Ladder Company: fatigue

properties of AA6061 and AA7075 extruded-rod after

retrogression heat treatment and thermo-mechanical treatment

. Research Project with Aluminum Company of America (Alcoa):

stress-accelerated tempering effect on 4340 and H13 hot work

tool steels

. Research Project with Kam Kiu Aluminum Group & A Finkl & Son

Steel Co.: effect of high temperature austenitizing on the

secondary-hardening of hot-work tool steel and extrusion die

life improvement

. Research Project with Rolls-Royce, North America:

microstructure characterization and mechanical properties

analysis of superalloy materials (Ni-based alloys)

. Research Project with Werner Ladder Company: application of

retrogression heat treatment (RHT) to improve formability of

6xxx extrusions

. Research Project with Indalex Aluminum Solution Group: double

aging/drawing effects on extruded aluminum alloys

. Research Project with Kam Kiu Aluminum Group: double aging

and thermo-mechanical treatment (TMT) of 6xxx and 7xxx

extrusions to optimize their strength and ductility for

special structural needs

. Research Project with Reference Metal Company, Inc. & Mittal

Steel USA: effect of Nb on microstructure of weld heat affect

zones and mechanical properties of high strength structural

steels

Graduate student teaching:

. Microstructure Characterization of Materials (MMAE 571)

(advanced optical microscopy - sample preparation,

microstructure characterization, image analysis and

quantitative metallurgraphy; principles of Scanning Electron

Microscopy (SEM) - electron optics, electron and specimen

interaction, image formation and interpretation; x-ray

spectral measurement - qualitative and quantitative x-ray

analysis by WDS and EDS)

. Ferrous Transformation (MMAE 574)

(allotropic modifications in iron and the solid solution

effects of the important alloying elements on iron; physical

metallurgy of the austenite formation during heating and the

reaction of pearlite, bainite, and martensite from austenite;

physical and mechanical property changes during eutectoid

decomposition and tempering; important heat treatment

processes of steel)

. Dislocation Theory and Strengthening Mechanisms (MMAE 564)

(basic characteristics of dislocations in crystalline

materials; dislocations and slip phenomena; application of

dislocation theory to strengthening mechanisms; strain

hardening and solid solution and particle strengthening;

grain size and grain boundaries; creep and Fatigue)

. Transmission Electron Microscopy (MMAE 573)

(design, construction, and operation of transmission electron

microscope (TEM), including image formation and principles of

defect analysis in materials science applications; theory and

use of state-of-art micro-characterization techniques for

morphological, crystallographic, and elemental analysis at

high spatial resolutions at 10 nanometers in metallurgical

and ceramic materials; advanced TEM sample preparation

techniques)

. Gas-Metal Reaction in Surface Treatment of Steel (MMAE 572)

(theory of solid and gas carburizing, nitriding, and

carbonitriding; generation of exothermic, endothermic, and

special gas atmospheres; control of atmosphere carburizing

potential by dew point and infrared detectors; microstructure

characterization of steel heat treatments)

. Manufacturing Processing (for undergraduate students) (MMAE

485)

(principles of material forming and machining and grinding

processes; and equipment; force and power requirements,

surface integrity, final properties, and dimensional accuracy

as influenced by material properties and process variables;

design for manufacturing; factors influencing choice of

manufacturing process)

. Interparts Industry, Inc., Plainview, NY (Mar. 2001 - Apr. 2002)

Job Title: Staff Materials Engineer

Responsibilities:

. Design heat treatment processes for automotive drive axles

and CV joints

. Heat treatment troubleshooting, product metallurgical

examination and quality control

. Failure analysis, market investigation, and materials

selection

. CV joint design and AutoCAD drawing

. Recommend manufacturing parameters for optimized product

quality

. Provide all the metallurgical support to both

Engineering/Q.C. and Marketing/Sales Departments

. Davis Environmental Labs, Inc., Chicago, IL (Nov. 2000 - Mar. 2001,

Part-time)

Job Title: Director of Electron Microscope Analysis

Responsibilities:

. Transmission electron microscope (including EDS) operation

and analysis

. Equipment maintenance and calibration

. Sample preparation

. University of Illinois at Chicago, Chicago, IL (Dec. 1997 - Mar. 2001)

Job Title: Postdoctoral Research Associate in Fracture Mechanics &

Material Durability Laboratory, Department of Civil and

Materials Engineering

Responsibilities & research activities:

. Electron microscopy (TEM, SEM, EDS, and Environmental SEM)

operation and Analysis

. Fracture mechanics and failure analysis of engineering

materials

. Computer simulation of fracture behavior

. Materials characterization and microstructural analysis

. Relationship between microstructure and properties of

materials

. South Dakota School of Mines & Technology (SDSM&T), Rapid City, SD

(Dec. 1997 - Mar. 2001)

Job Title: Research Assistant, Teaching Assistant in Department of

Metallurgical Engineering

Research activities: aluminum-lithium alloys and applications;

investigation of microstructure and mechanical properties;

operation of TEM, SEM, EDS, and optical microscopes; heat

treatment and mechanical property testing; equipment

maintenance and calibration; sample preparation; results

analyses and reports

Graduate student teaching:

. Electron Microscopy & Analysis

. Theory of Dislocations

. Shanghai Jiao Tong University, Shanghai, P. R. China (Jan. 1986- Jan.

1992)

Job Title: Assistant Professor; Lecturer in Department of Materials

Science and Engineering

Responsibilities & research areas:

1. Microstructural analysis and mechanical properties of

materials

2. Fracture mechanics and failure analysis

3. Phase transformation theory and applications

4. Heat treatment of materials and applications

Undergraduate student teaching:

5. Principles of physical metallurgy

6. Design of Microstructure and composition of steels

7. Electron microscopy

8. Quantitative metallography

9. Metallic materials and heat treatment

10. Principles of chemical-thermal treatment of metals

. Shanghai No.2 Bicycle Factory, Shanghai, P. R. China (Feb. 1982- Aug.

1983)

Job Title: Staff Engineer in Materials and Heat Treatment

Responsibilities:

11. Design and improvement of heat treatment processes

12. Technical support for welding processes and development of

heat treating procedures of welded products

13. Failure analysis and quality control

14. Material selection

15. Equipment design and maintenance

. Shanghai Xing-Zhong Engine Factory, Shanghai, P. R. China (Jan. 1975 -

Feb. 1978)

Job Title: Technician in Heat Treatment & Casting Workshop

Responsibilities:

16. Heat treatment process control of wrought and cast steels and

nonferrous alloys

17. Solving routine technical problems

18. Metallographic examination and quality control

EDUCATION:

. Ph.D. Degree in Materials Science and Engineering: Jan. 1992- Dec.

1997

Department of Metallurgical Engineering, South Dakota School of

Mines & Technology, Rapid City, South Dakota

Dissertation: "Transmission Electron Microscopy Study on the

First and Second Generation of Aluminum-Lithium Alloys"

GPA: 3.74 / 4.00

. Master Degree in Materials Science and Engineering: Aug. 1983-Jan.

1986

Department of Materials Science and Engineering, Shanghai Jiao

Tong University, Shanghai, P. R. China

Thesis: "TEM Study on the Microstructures of Nitro-carburized

Surface and the Age-hardening of Its Compound Layer"

GPA: 3.85 / 4.00

. Bachelor Degree in Metallic Materials and Heat Treatment: Feb. 1978 -

Feb. 1982

Department of Metallurgical Engineering, Shanghai University of

Technology, Shanghai, P. R. China

Thesis: "A study on the Bainitic Microstructures in 25Cr2Mo1V

Steel and Its Effects on Toughness"

GPA: 3.93 / 4.00

. Professional Training in Heat Treatment of Metals: Dec. 1972 - Jan.

1975

Technical School of Shanghai Power-Station Equipment Factory,

Shanghai, P. R. China

PUBLICATIONS AND PRESENTATIONS:

1) "A Study on the Microstructures of Nitro-carburized Surface

and the Age-hardening of Its Compound Layer," National

Conference of Solid Phase Transformation, Wuxi, P. R. China,

Mar., 1986.

2) "Phase Transformation Unit of Bainitic Ferrite in Low and

Medium Carbon Alloy Steels," National Nature Science

Foundation Conference: Bainitic Phase Transformation and the

Application, Peking, P. R. China, Apr., 1987.

3) "The Relationship between Phase Transformation Unit of

Bainitic Ferrite and Its Surface Relief," The 1st National

Conference of Bainitic Phase Transformation, Huizhou, P. R.

China, Nov., 1987.

4) "The Super-plastic Behavior of Cu-Al-Ni Alloy and Its

Application," The Annual Meeting of Shanghai Mechanical

Engineering Society: Materials and Heat Treatment, Shanghai,

P. R. China, Sept., 1987.

5) "Phase Transformation Unit of Bainitic Ferrite and Its

Surface Relief in Low and Medium Carbon Alloy Steels," ACTA

METALLURGICA SINICA (Chinese Edition), Series A, Vol. 24, No.

6, pp. 379-385, June, 1988

6) "Phase Transformation Unit of Bainitic Ferrite and Its

Surface Relief in Low and Medium Carbon Alloy Steels," ACTA

METALLURGICA SINICA (English Edition), Series A, Vol. 2, No.

3, pp. 161-167, May, 1989.

7) "The Investigation on the Bainitic Phase Transformation Unit

in Some High Carbon Content Alloys," The 4th National

Conference of Materials and Heat Treatment, Tianjin, P. R.

China, Oct. 1990. (1st Prize Award)

8) "Bainitic Transformation Units and the Formation of

Martensite-like Bainite in Fe-C Alloys," ACTA METALLURGICA

SINICA (Chinese Edition), Series A, Vol. 30, No. 9, pp385-

393, September, 1994.

9) "Transmission Electron Microscopy Study on the First

Generation of Modern Al-Li alloys 2091 and 8090," Al-Li

Alloys Seminar, Alcoa Technical Center, Pittsburgh,

Pennsylvania, Mar., 1995.

10) "Strengthening and Deformation Mechanisms in the First

Generation of Al-Li Alloys 2091 and 8090," 82nd Annual

Meeting of South Dakota Academy of Science, Northern State

University, Aberdeen, South Dakota, Proceedings of the South

Dakota Academy of Science, Vol. 76, pp. 217-223, Apr.,1997.

11) "Application of the Crack Layer Model for Understanding and

Generalization of the Lifetime-CRDF Correlation," ANTEC 2000,

Society of Plastics Engineers 58th Annual Technical

Conference, Orlando, Florida, May, 2000.

12) "Ductile Failure and Delayed Necking in Polyethylene,"

ANTEC 2000, Society of Plastics Engineers 58th Annual

Technical Conference, Orlando, Florida, May. 2000. (Best

Paper Award)

13) "Notch Sensitivity 0f Water Pipe Grade Polyethylene and

Polybuthylene,"

ANTEC 2000, Society of Plastics Engineers 58th Annual

Technical Conference, Orlando, Florida, May, 2000.

14) "2004 China Aluminum Forum Conference Review,"Light Metal

Age, Jan./Feb., 2005, Vol. 63, No.1, pp. 32-42.

15) "Kinetics of Bainite Transformation in Carburized 4317 M2,"

TMS 2005 (134th Annual Meeting & Exhibition), Feb., 2005, San

Francisco, CA.

16) "Microstructural Characterization of Laser Cladding of Cu-

30Ni," Journal of Materials Science, Vol. 40, 2005, pp. 2051-

2054.

18) "Chinese Aluminum Industry: 2005 China Aluminum Forum

Conference Review,"Light Metal Age, Vol. 64, No. 1, 2006, pp.

50-47.

19) "Kam Kiu Aluminum Group: Largest Global Exporter of

Aluminum Extrusions in China," Light Metal Age, Vol. 63, No.

2, 2005, pp. 6-16.

20) "Fatigue Properties of AA6061 and AA7075 Extruded Rod after

Retrogression Heat Treatment and Thermo-mechanical

Treatment,"Light Metal Age, Vol. 64, No. 5, 2006, pp. 6-8.

21) "Kinetics of Bainite Transformation in 4317 Type Steels,"

METALS AND MATERIALS International, (published by Korean

Institute of Metals and Materials), Vol. 12, No. 6, 2006, pp.

453-458.

22) "Sustainable Development of China's Al Industry"Light Metal

Age, Vol. 65, No. 1, 2007, pp. 32-43.

23) "Shanghai Sigma Metals Inc.: China's Leading Secondary

Aluminum Producer," Light Metal Age, Vol. 65, No. 4, 2007,

pp. 24-32.

24) "2007 China Mg & Automotive Conference, Part I," Light

Metal Age, Vol. 65, No. 5, 2007, pp. 34-40.

25) "2007 China Mg & Automotive Conference, Part II," Light

Metal Age, Vol. 65, No. 6, 2007, pp. 36-41.

26) "Double Aging and Thermomechanical Heat Treatment of AA7075

Aluminum Alloy Extrusions," Journal of Materials Science,

Vol. 44, Issue 23, 2009, pp. 6384-6391.

HONORS AND AWARDS:

19. Best Paper Award of ANTEC' 2000 (Annual Technical Conference

of Plastics Engineers), Orlando, Florida, 2000.

20. Grant of National Science Foundation EPSCoR Program for

Aluminum-Lithium Alloys research program (1993-1997).

21. 1st Paper Prize Award of the 4th National Conference of

Materials and Heat Treatment, Tianjin, P. R. China, 1990.

PROFESSIONAL SKILLS:

Heat Treatment of Materials, Mechanical Properties Testing and

Analysis, Fracture Mechanics and Failure Analysis,

Fractography, X-ray Diffraction Analysis, Material Selection

and Sample Preparation, Electron Microscopy (TEM, STEM, SEM,

EDS and Environmental SEM) Operation and Analysis, Optical

Microscopy, Image Analysis Systems, Microstructure

Characterization and Analysis, Qualitative and Quantitative

Metallography, Phase Transformation Theory and Applications.

AFFILIATIONS:

ASM International

International Metallographic Society

Microscopy Society of America

Midwest Microscopy & Microanalysis Society

. Executive Committee member (Education Committee Chair)

ASM International Chicago Regional Chapter

. Contributing Editor

Light Metal Age

REFERENCES:

Available upon request.

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