Mechanical Engineering

SUMMARY

Strong materials engineering background with 3 years of R&D experience

Over 3 years of experience in material processing, fabrication and characterization

Proficient in the use of MS office and tools and packages like ANSYS, Mathcad, Thermocalc & Factsage

Intensive Knowledge of coating and solidification techniques specially PED and SPS

Excellent communication skills acquired through interaction with sponsors, and documentation of projects.

Excellent report writing, communication, interpersonal and problem solving skills

EDUCATION

Master of Science in Mechanical Engineering July 2011

Oklahoma State University, Stillwater, Oklahoma GPA: 3.8/4.0

Specialization: Materials Science and Metallurgy

Bachelor of Engineering in Metallurgical Engineering May 2008

Andhra University, Visakhapatnam, AP, India (Ist class with Distinction) GPA: 3.9/4

WORK EXPERIENCE

Research Assistant, Spark Plasma Sintering Laboratory Aug ’09 – Jul ‘11

Oklahoma State University, Stillwater, Oklahoma

Optimized the parameters for processing of bioactive ceramics by Spark Plasma Sintering (SPS)

Performed mechanical characterization of the fabricated bioactive materials and composites of hydroxyapatite, yttria stabilized zirconia, alumina and titanium

Assessed bioactivity of the sintered bulk samples in in simulated body fluid and also using MTT assay testing

Designed a composite of alumina in Co-W to serve as an alternative to hard chrome plating (Master’s thesis)

Fabricated Co-W alloy films and Co-W-alumina composite coatings using Pulse Electrodeposition (PED)

Characterized these coatings at both micro and nano-scales.

Successfully performed thermodynamic calculations using tools like Thermocalc and Factsage

Successfully published papers on both the topics in JOM, Applied Surface Science and Surface Engg

Extensively used MS Word, Excel and PowerPoint to present reports at meetings

Teaching Assistant, Department of Mechanical and Aerospace Engineering Aug ’10 – May ‘11

Oklahoma State University, Stillwater, Oklahoma

Conducted discussion sessions and office hours for ‘Phase Transformations’ course of graduate students

Conducted lab sessions for an undergraduate course on ‘Mechanical Metallurgy” of 60 students

Tutored, graded and assisted graduate students and undergraduate students.

Trained undergraduate students on evaluation of various materials by mechanical characterization techniques including optical microscopy, hardness, tensile testing, impact testing, fatigue testing and many others.

Graduate Trainee, Centre for Engineered Coatings Aug ’08 – Jul ‘09

International Research Centre for Powder Metallurgy and Newer Materials(ARCI), Hyderabad, India

Worked as a graduate trainee at ARCI with Mr. N. Ravi, Centre for Engineered Coatings for a period of one year.

Extensive studies on the evolution of mechanical properties of thermally sprayed and pulsed electrolytically-deposited coatings by Depth Sensing Indentation Process.

Equipments Used: Cold Gas Dynamic Spray System, Pulsed Electrodeposition Equipment, Olympus GX51 Image Analyzer, Microhardness Tester, Universal Testing Machine (INSTRON), Scanning Electron Microscope (SEM), Depth Sensing Nano-Indentor.

Responsibilities: Calculated of indentation hardness, fracture toughness, porosity, residual stresses and analysed the effect of process parameters on pulsed-electrodeposited and thermally sprayed coatings.

ACADEMIC EXPERIENCE

Oklahoma State University, Stillwater, OK – Dissertation

Worked on a project on fabrication of Co-W composite coatings to serve as alternatives for hard chrome replacements under the guidance of Dr. Sandip P. Harimkar.

The project deals with the fabrication of composite coatings by varying the pulse parameters, optimization of the parameters to obtain amorphous composite coatings and investigation of properties of the composite coatings to prove them as an efficient alternative for chrome plating.

Research in the area of Spark Plasma Sintering of Hydroxyapatite coatings used in biomedical implants

Worked on the processing of bulk hydroxyapatite and hydroxyapatite – yttria stabilized zirconia composites by spark plasma sintering to assess their biological performance along with achievement of improved mechanical properties.

Worked on deposition of hydroxyapatite coatings on titanium implants mainly used for the hip implants using the technique of spark plasma sintering.

RELATED COURSEWORK

• Doctoral Course: Electron Microscopy (theory and lab)

• Graduate Course: Corrosion Engineering, Phase Transformations, Diffraction in Materials, Advanced Experimental Mechanics (theory and lab), Advanced Biomaterials Science, Advanced Materials Science, Modern Materials, Numerical Engineering Analysis.

• Undergraduate Course: Mechanical Metallurgy, Iron Making, Steel Making, Metal Forming, Metal Casting, Mineral Benefication, Non-ferrous extractive Metallurgy, Heat and Mass Transfer, Design of Machine Elements, Strength of Materials, Manufacturing Technology, Corrosion and its prevention.

PUBLICATIONS

Mrinalini Mulukutla, Ashish Singh, Sandip P. Harimkar, Spark Plasma Sintering for Multi-Scale Surface Engineering of Materials, Journal of Metals, 62 (6), 2010, pp. 65-71.

Mrinalini Mulukutla, Sandip P. Harimkar, Surface Properties Measurement, Engineering Measurements Encyclopedia, Wiley Publishers (In Press).

Mrinalini Mulukutla, Vamsi Karthik Kommineni, Sandip P. Harimkar, Pulsed Electrodeposition of Co-W Amorphous/Nano-Crystalline Coatings, Applied Surface Science (In Review).

Mrinalini Mulukutla, Sandip P. Harimkar, Microstructure and Wear Behavior of Pulse Electrodeposited Alumina Nanoparticle Reinforced Co-W Nanocomposite Coatings, Surface Engineering (In Review).

RECOGNITIONS AND MEMBERSHIPS:

Presented a poster on “Fabrication of Nano and Amorphous Composite Materials Using Spark Plasma Sintering” at Nanofocus 2010 held at Midwest, OK.

Presented a paper on “Nanotechnology” at national level technical symposium (Technozion’ 07) held at NIT Warangal, India.

Organized technical symposiums, NWSCM in Feb 2007 and COSMET in March 2007, conducted by the Department of Metallurgical Engineering, Andhra University, India.

Core Member of Student Affiliate Chapter of Indian Institute of Metals from 2005-2008.

Active member of TMS, AcerS, AIST, ASM from 2010.

TECHNICAL SKILLS:

Technical Packages: ANSYS, MATLAB, Mathcad, Thermocalc, Factsage, CALPHAD

Application Software: MS Office, Visual Basic for Applications (VBA), C & C++

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