Engineer Engineering
Resume:
MOBBASSAR HASSAN SK
*** **** ***** ****** ******, Alabama 36830
334-***-**** *******@*****.***
MATERIALS ENGINEER
6+ yrs hands on experience in process-metallurgy, corrosion cracking, failure-analysis, characterization.
Extensive experience in process-design, execution, quality analysis and continuous improvement
Exceptionally skilled at developing custom experim ental setups with necessary equipment and processes
Possess in-depth knowledge in a variet y of processes and subjects, including Effect of microstructure /
chemistry / phase / process parameters on development of application specific, better performance, cost -
effective materials Heat treatment and kinetics of phase transformation Corrosion - various types
(especially, stress corrosion effects) - damage mechanisms, materials property requirements, related
processing, inspection-protection in accordance with ASTM / API / NACE specifications Metal
Manufacturing Processes (metal forming, casting, welding) Deformation & failure mechanisms Range
of materials characterization techniques Effects of defects and nano-structuring on materials properties
Outstanding work-adaptability and ability to lead and support research and development projects with
cross-functional, matrix teams as a result of multidisciplinary background in materials process and
characterization, including - metals and alloys, advanced and conventional ceramics, semiconductor etc.
Excellent problem solver, able to quickly identify and eliminate the root cause of failures, deviations .
Dedicated to maintaining safety in the laboratory and clean-room environment.
Efficient team player and s trong team leader / coach providing subject matter expertise and direction to
junior personnel and undergraduate students.
Have attained 8 prestigious publications and many awards.
.
Process-Metallurgy / Heat Treatment Process-Ceramics Failure Analysis Metallography Corrosion-test
Metallurgical investigation Mechanical Testing Image processing NDT Electron & Optical Microscopy
Spectroscopy Materials Characterization (Microstructural, Mechanical etc.) Lean six sigma concept
Technical trouble shooting Process Design & Continuous Improvement Regulatory & Standards Compliance
PROFESSIONAL EXPERIENCE
AUBURN UNIVERSITY, Auburn, Alabama
Materials Research / Process Engineering (temporary) Post-doctoral Dept of Physics Jun 14 onwards
W orking in a team of electrical engineer, physicist and materials engineer to develop a transistor device
for photovoltaic application based on zinc oxide nano-film wide band gap semiconductor.
Providing consultation to graduate students, taking care of the materials (processing, selection) aspects
Resolved number of problematic situations by designing and developing new processes, customizing and
optimizing the process parameters.
Made significant contribution to the group in terms cost and time saving and accuracy [Details on request]
Metallurgy and Corrosion Engineering Doctoral Dept of Materials Eng Jan 07- May 14
Jan 07- May 08:
W orked in a FAA funded ACER (air cabin environmental research) team project. Investigated mechanical
and corrosion behavior of aircraft grade aluminum alloys, steels, composites.
Jun 08 - May 2014: Doctoral
Coordinated planning and execution of 3 core research projects -
1. Hydrogen embrittlement / SCC of 4340 steel exposed to vaporized H2O2 of various concentrations.
2. Microstructurally mediated fracture behavior of electrochemically hydrogenated 4340 steel .
3. Design and development of an innovative in-house technique for measuring low level H in steel.
- with sole authority over all stages of each project – including creating specialized process and setup
design unique to the needs of each project, establishing standards for functionality and repeatability, and
gaining insight into the working principles and features of all necessary equipments / modules.
Synchronized computer assisted operation of various sensor modules by writing codes.
Developed custom-tailored experimental processes in alignment with necessary technical specifications.
Designed required experimental parameters, sample configurations, and quantities based on testing .
Developed range of microstructure and property by customizing metallurgical heat treatment process.
Designed and developed an in-situ electrochemical hydrogen charging system.
Resume
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Metallurgy and Corrosion Engineering Doctoral : continued
Conducted in-depth metallurgical, metallographic and fractographic examination to characterize
microstructure and correlate mechanistic and quantitative fracture behavior for various process
parameters and exposure conditions.
Leveraged scanning electron microscopy and metallography for analyzing root cause of the failure.
Recommended better microstructure to combat corrosion cracking.
Designed and developed an innovative in-house technique for measuring low level hydrogen in steel.
Prepared summaries and reported the results for publication and presentation.
Maintained accurate and detailed records of about 350 samples. Designed all phases of the experiment
to test and statistically analyze the performances of samples, including sourcing the necessary resources
and facilities to characterize the mechanical response and fracture behavior.
Supervised, taught and intimately involved in full-fledged metal laboratories involving thorough
metallurgical investigations in 6 short-term projects on various aspects of different grades (including air -
craft grades) and shapes (bar, plate) of steels, aluminum alloys subjected to range of environmental
and/or deformation conditions, including investigation of the effects of chemistry and heat-treatment
phase transformation and computational phase analysis, microstructural and mechanical property
modulation due to cold rolling, recyrstallization, carburiz ation / decarburization ductile to brittle transition
for hot and cold rolled alloys metal casting. Used image processing for quantitative phase analysis.
Taught “Engineering Metals” and “Materials Science” theory courses in absence of major professor.
Selected Achievements and Problem Solving Doctoral
Saved cost of buying expensive high temp atmosphere controlled furnace by developing high temp heat -
treatment technique via customized encapsulation of steel samples in argon-impregnated quartz
ampoule. Modulated heat treatment process to achieve array of microstructure and property.
Received numerous honors/awards for contributing to the scientific community towards understanding of
how various microstructures of hydrogenated steel of same chemistry mechanistically and quantitatively
mediate the fracture process. Recommended better microstructure to combat corrosion cracking.
Responded to the FAA’s request, as the funding agency for the ACER) project, for information on
potentially problematic situations in decontaminating aircraft using vaporized hydrogen peroxide by
creating a unique experimental set-up and process using critical standards and specifications. Identified
hydrogen embrittlement leading to catastrophic failure of aircraft grade 4340 steel at 1300ppm H2O2 vapor
Eliminated issue during testing in which vapor concentration remained too low during injection of
vaporized hydrogen peroxide sterilant into an enclosed chamber. Unco vered a problem with hydrogen
peroxide dripping along a plastic manifold inside the VHP generator module. Disassembled to identify the
leakage and order the necessary replacement part.
Delivered successful in-house technique for measuring low-level hydrogen concentration in steel,
circumventing the need for expensive instrumentation by creating a proprietary hydrogen measurement
system. Created a unique experimental setup to achieve desired results, saving more than 5x the cost of
the instrumentation, usually used elsewhere, while preserving required levels of accuracy. Trouble shot,
identified and resolved problem due to radio-wave interference during induction heating by securing
thermocouple module as well as by choosing the appropriate thermocouple type.
Resolved problem associated to furnace while teaching metal labs, identified the reason of unexpected
recyrstallization temperature observed during metallurgical investigation of the cold rolled copper bars
subjected annealing at different temperatures, promptly recommended recalibrating the furnace and
resolved the issue. This correction ensured the proper results during the lab and supported students in
learning proper temperature ranges for recyrstallization. Eliminated another problem during metal lab by
changing the etchant composition for avoiding surface blackening and ensuring better performance
metallographic etchant. Introduced new ideas at multiple occasions, facilitating better performance labs,
which were highly appreciated and implemented in the future labs.
Overcame safety issues with an experiment involving an electrochemical charging setup using 1 N
sulphuric acid as an electrolyte for charging hydrogen into samples, using a setup that prevented use of
the fume hood mandated by the safety officer. Performed necessary calculations to determine OSHA
managed permissible exposure limits for sulphuric acid vapor vs. the calculated concentration from the
experiment, and demonstrated safety effectively to both the safety officer and the supervisor.
CAREER NOTE (2005-2006): Earlier roles include Research Assistant at Bio-ceramics & Coating
Division of an Indian national lab (CG&CRI, India). Executed a project funded by ICMR: “Multi-Centered
Clinical Trials for Human Implantation of Bio-Active Integrated Orbital Implant.” [Details on request]
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FORMAL EDUCATION
Doctor of Philosophy (Ph.D.) in Materials Engineering (2014; GPA 3.69/4)
Thesis: Effects of Microstructure on Fracture Behavior of Hydrogenated Notched 4340 Steel.
Auburn University – Auburn, Alabama
Master of Technology in Materials Science & Engineering (2005; GPA 9.17/10.0)
Thesis: Synthesis and Characterization of Ca Modified PZT Nano Ceramics.
Other short projects: Fabrication of ceramic shapes (ceramic-sphere and membrane) by gel-casting
Indian Institute of Technology (IIT) – Kharagpur, India
Bachelor of Technology in Ceramic Technology (2003; First Class)
Project: Effect of Mg-Al hydrate gel in the flow property of low cement castable [monolithic refractory].
Other short projects: on multilayer ceramic-polymer and glass polymer composite
Calcutta University – India
CERTIFICATIONS & PROFESSIONAL DEVELOPMENT
Scanning Electron Microscopy (SEM) Training – Authorized User
Laser Safety Test, Auburn University
Hydrogen Peroxide Safety Test (online), Steris Corporation
PROFESSIONAL AFFILIATIONS
Alpha Sigma Mu
The Minerals, Metals & Materials Society (TMS)
Association of Iron & Steel Technology (AIST)
American Society for Metals (ASM)
Materials Research Society (MRS)
HONORS & AWARDS
rd th
2012: 3 place out of 40 students in the poster contest at the 10 Elem. Of Mech. Eng. Conf.
2012: Honorable mention out of 120 students in Eng. Grad. Poster Competition, Auburn University.
rd th
2009: 3 place out of 100 students in the 20 graduate student forum, Auburn University.
2008: Outstanding grad student for academ ic performance, Alpha Sigma Mu, Auburn University.
2005: Distinction in Master of Technology, Indian Institute of Technology (IIT, India).
2004: Nominated for DAAD and EPFL Fellowship for securing highest in coursework (IIT India).
2003: All India Rank 56 (percentile 94.76) in Graduate Aptitude Test in Engineering (GATE).
TECHNICAL SKILLS / KNOWLEDGE
W indows MS Office Matlab Visual Basic 6 ANSYS (structural) Origin Statistical data analysis tools
SEM (expert) EDX XRD IR-Spectroscopy RAMAN-Spectroscopy XPS AUGER
TEM EBSD DT-TGA DSC
ASTM NACE API ISO
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PUBLICATIONS & PRESENTATIONS
M.H. Sk, RA Overfelt, “Microstructurally Mediated Changes in Fracture Characteristics for
Electrochemically Hydrogenated 4340 Steel” Materials Performance & Characterization. ASTM Invited
paper, DOI: 10.1520/MPC20140026, Vol. 3, no.5, 1-16 (2014)
M.H. Sk, RA Overfelt, RL Haney, JW Fergus “Hydrogen Embrittlement of 4340 Steel due to
Condensation during Vaporized Hydrogen Peroxide Treatment”, Materials Sci. & Eng. A, Vol 528, 3639-
3645 (2011)
Gale W. F.; Sofyan, N. I.; Gale, H. S.; Sk, M.H.; Chou, S.F.; Fergus, “Effect of VHP, as a decontaminant
aluminum alloys and stainless steel” J. Materials Sci. & Tech., Vol.25,, 76-84 (2009).
Chou, S. F.; Sk, M.H.; Sofyan, N. I.; Overfelt, R. A. ; Gale, W. F. “Preliminary Evaluation of the Effects of
Hydrogen Peroxide on Common Aviation Structural Materials,” December 2009.
http://libraryonline.erau.edu/online-full-text/faa-aviation-medicine-reports/AM09-23.pdf
S Mukhopadhyay, M.H. Sk, “The properties of a low cement castable containing chemically prepared
hydrous spinel.” Ceramic Silikaty 49 (2) 97-103, (2005).
M.H. Sk, R.A. Overfelt, “Strain Rate Effects on Hydrogen Embrittlement Characteristics of Notched
4340 Steel,” MRS Online Proc. Lib, Vol. 1650 (2014), mrsf13-1650-jj04-02, MRS Fall-2013 conference,
Boston (with Oral presentation).
M.H. Sk, R. A. Overfelt “Changes in Fracture Characteristics for Electrochemically Hydrogenated 4340
Steel,” (extended abstract) ASTM E08, 13th International ASTM/ESIS Symp on FFM (39th NFFM) proc.
(Nov 2013), (with Oral presentation).
M.H. Sk, RA Overfelt, JW Fergus, BC Prorok, “The effects of Prior Austenitic Grain Size and Martensitic
Hardness in Hydrogen Embrittlement of 4340 Steel.” AISTech 2013 Proc., Pittsburgh (May 2013), (with
Oral presentation).
M.H. Sk, R. A. Overfelt, 11th Elements of Mech. Eng. Conference 2013, AU, AL, USA, Poster
M.H. Sk, R. A. Overfelt, 10th Elements of Mech. Eng. Conference 2012, AU, AL, USA, Poster.
M.H. Sk, D. Basu, B. Kundu, Biomaterials & Biomedical Devices, 2006, CGCRI, India, Poster.
M.H. Sk, S. Ram, ISAMAP- 2K4, 2004, Indian Institute of Tech. (IIT) Kharagpur, India, Poster.
RELEVANT COURSES
Corrosion Solidification processing Numerical simulation of materials processing
Phase transformation kinetics Thermodynamics of Materials Crystallography
Semiconductor materials (device fabrication processing included) Physics of solids (Electronic/Optical/Magnetic
properties of materials) Dielectric materials & devices Electron microscopy (SEM, TEM),
Techniques of materials characterization Nano-scale science and technology Electro-ceramics materials,
Deformation and failure in materials (elasticity, plasticity, creep, fatigue, fracture, microstructural defects)
Principles of Ceramic processing Glass Refractory W hiteware
Fundamentals of the major engineering branches (e.g. electrical, mechanical, chemical engineering),
Engineering Mathematics.
LANGUAGE SKILLS
English Hindi Bengali Urdu
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