Current affiliations curators’ Professor, Metallurgical Engineering Site Director, nsf industry/University Cooperative Research Center for Friction Stir Processing




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RAJIV S. MISHRA

Department of Materials Science and Engineering

B37 McNutt Hall

Office: (573) 341 6361; Office mobile: (573) 308 7203

e-mail: rsmishra@mst.edu



CURRENT AFFILIATIONS

Curators’ Professor, Metallurgical Engineering

Site Director, NSF Industry/University Cooperative Research Center for Friction Stir Processing


Research Investigator, Intelligent Systems Center

Thrust Area Leader of Friction Stir Processing, Center for Aerospace Manufacturing Technologies

APPOINTMENTS

Curators’ Professor (Missouri S&T) Jan. 2009- Cont.

Professor (Missouri S&T) Sept. 2006- Dec. 2008

Associate Professor (Missouri S&T) Sept. 2003- Aug. 2006.


Assistant Professor (Missouri S&T) Aug. 1999- Aug. 2003.

Adjunct Assistant Professor (UC-Davis) July 1997-July 1999


Post Graduate Research Associate(UC-Davis) March 1994-June 1997

Group Leader (Creep Group) (DMRL) 1989-1994

Project Leader (DMRL) 1993-1994

Visiting faculty (UI-UC) Fall 2008

RESEARCH INTERESTS

Friction stir welding and processing, Processing and properties of ultrafine grained materials (including nanocrystalline), Superplastic forming, High temperature mechanical behavior of materials (particularly creep and superplasticity), Discontinuously reinforced aluminum composites, Nanophase aluminum alloys, Bulk metallic glasses, Materials selection for alternative energy systems, Hydrokinetic energy.

EDUCATION

Ph.D., Metallurgy (1988), University of Sheffield, UK, with Brunton Medal.

“The Influence of Microstructure on the Diffusional Creep of Alloys”

Faculty Advisors: Professor G. W. Greenwood and Professor H. Jones

M.Tech., Metallurgical Engineering (1985)

Indian Institute of Technology, Kanpur, India.

“Superplasticity in Al-Zn eutectoid and Pb-Sn eutectic alloys”

Faculty Advisor: Professor G. S. Murty

Bachelor of Engineering, Metallurgical Engineering (1982)

University of Rajasthan, Jaipur, India.

HONORS AND AWARDS

2010 Co-recipient of Alexander Schwarzkopf Prize for Technological Innovation awarded to the Center for Friction Stir Processing by NSF-IUCRC Directors Association

2009 Fellow, ASM International

2008 Curators’ Professor

2007 Faculty Excellence Award, University of Missouri - Rolla

2007 ASM-IIM Visiting Lecturer, ASM International

2006 Faculty Excellence Award, University of Missouri - Rolla

2005 Faculty Excellence Award, University of Missouri - Rolla

2005 Outstanding Graduate Faculty of SoMEER, Council of Graduate Students, University of Missouri - Rolla

2005 Sustained Teaching Excellence, SoMEER, University of Missouri - Rolla

2004 Faculty Excellence Award, University of Missouri - Rolla

2003 Faculty Excellence Award, University of Missouri - Rolla

2003 Dean’s Award for Innovation in Teaching, Honorable mention, SOMM-UMR

2002 Faculty Excellence Award, University of Missouri - Rolla

2002 Ranked 148 among researchers in Materials Science worldwide (ISI Essential Science Indicator database in Oct. 2002 based on citation of journal papers)

2002 Listed in Marquis Who’s Who in America

2001 Faculty Excellence Award, University of Missouri - Rolla

2001 Faculty Performance Shares, University of Missouri

1993 Young Metallurgist Award from the Indian Institute of Metals, India.

1993 Associate of the Indian Academy of Sciences, India.

1988 Brunton Medal for the best Ph.D. dissertation in the School of Materials from the University of Sheffield, UK

1985-1988 Firth Pre-doctoral Scholarship from the University of Sheffield, UK

1985-1988 ORS Award from the Committee of Vice-Chancellors and Principals of UK

RESEARCH EXPERIENCE

Missouri S&T August 1999- Cont.

  • Friction stir welding of aluminum alloys and composites

Established the Center for Friction Stir Processing in 2000, and joined a four-university NSF Industry/University Cooperative Research Center in 2004. UMR site is supported by General Motors, Boeing- St. Louis, Pacific Northwest National Laboratory and Friction Stir Link. Established a state-of-the-art friction stir welding facility with three machines (a two-axis machine funded by NSF-IMR program in 2000, a robotic friction stir welding machine funded by ONR-DURIP program in 2004 and a friction stir spot welding machine funded by AFRL under CAMT program). Established microstructure-property correlations in high strength aluminum alloys and composites.

  • Friction stir processing

Demonstrated use of friction stir processing for superplasticity. This is a new concept that enables several new technical development.

Surface composite fabrication for local wear resistance enhancement.

Microforming of MEMS components.

Friction stir channeling as a new technique to fabricate integral channel heat exchangers.

Several of these concepts are being developed for the first time and the University of Missouri filed five patent applications. So far three patents have been awarded.

• Elevated temperature deformation mechanism in high strength aluminum alloys

Developing principles for microstructural design of high strength aluminum alloys.

Establishing fundamental deformation mechanisms in nanophase aluminum alloys, Al-Sc-Zr-Mg-SiC composites and amorphous aluminum alloys. The work is primarily focused on elevated temperature mechanical behavior. We have used secondary processing to obtain a combination of 700 MPa strength and >8% ductility in Al-Ni-Y alloys in collaboration with Pratt & Whitney.

The Al-Ni-Y work has resulted in several P&W-UMR joint invention disclosures in 2006.

  • Formability of Bulk Amorphous Alloys

Started activities on elevated temperature formability of bulk metallic glasses. Zr-based and Mg-based systems are being investigated.

  • Alternative Energy Systems

Started activities on materials and process selection for alternative energy systems. Particular focus is on 3-10 kW wind and hydrokinetic energy systems.


University of California, Davis March 1994-July 1999

• Processing and mechanical behavior of ultrafine grained materials

Synthesized and characterized a number of ultrafine grained metallic and composite materials. These materials have quite a unique mechanical behavior.

  • Sintering and mechanical behavior of nanocrystalline alumina and alumina based nanocomposites

Successfully consolidated nanocrystalline alumina (<50 nm) in less than 10 minutes, finest fully dense alumina reported in the literature.

Processed nano alumina matrix composites to evaluate the concept of residual stress toughening and ductile phase toughening in ceramics matrix composites.

• High strain rate superplasticity in dispersion strengthened aluminum alloys

Developed a ‘Superplastic Mechanism Map’ for high strain rate superplasticity in dispersion strengthened materials and proposed a model.

• Superplasticity in g-TiAl alloys

• Primary creep in dispersion strengthened aluminum alloys

Defence Metallurgical Research Laboratory, Hyderabad, India 1988-1994


• Creep Testing of Dispersion Strengthened Aluminum alloys, CM247-LC nickel base superalloy, Ti3Al alloys, Mg-Li-Al alloys and Quasicrystal.

• Development of high temperature aluminum alloys via rapid solidification.

• Responsible for microstructure-mechanical property optimization of CM247-LC integral rotor castings for aero engines.

PUBLICATIONS

151 publications in peer-refereed journals (total 219), please see the attached list.

BOOK

Friction Stir Welding and Processing, ASM International, Edited by R.S. Mishra and M.W. Mahoney, ISBN-13: 978-0-87170-840-3, published in March 2007.

Contents: Introduction * Tooling * Metal Flow and Temperature Distribution * Microstructural Evolution in Friction Stir Welding Aluminum Alloys * Mechanical Properties of Aluminum Alloys * Microstructure and Properties of Ferrous and Nickel Alloys * Microstructure and Properties of Titanium Alloys * Microstructure and Properties of Copper Alloys * Corrosion * Process Modeling * Use of Robots and Machines * Applications * Friction Stir Processing * Future Outlook * Index

PATENTS AND INVENTION DISCLOSURES

  1. Co-inventor of a patent application filed by Pratt & Whitney and the University of Missouri on “Friction stir welded structures derived from AL-RE-TM alloys,” June 15, 2007.

  2. Co-inventor of a patent application filed by Pratt & Whitney and the University of Missouri on “Hollow structures formed with friction stir welding,” June 15, 2007.

  3. Co-inventor of a patent application filed by Pratt & Whitney and the University of Missouri on “Secondary processing of structures derived from AL-RE-TM alloys,” June 15, 2007.

  4. Principal inventor of a patent application filed by the University of Missouri on “Selective reinforcement of metallic bodies,” September 2004.

  5. Inventor of a US Patent (7,354,657) entitled “Integral Channels in Metal Components and Fabrication thereof,” April 8, 2008

  6. Inventor of a U.S. patent (6,923,362) on “Integral channels in metal components and fabrication thereof,” August 2, 2005.

  7. Inventor of a U.S. patent (6,655,575) on “Superplastic forming of micro components,” December 2, 2003.

  8. Inventor of a U.S. patent (6,712,916) on “Metal superplasticity enhancement and forming process,” March 30, 2004.

  9. Invention disclosure to the University of California on “High-strength high-toughness Alumina-Niobium nanocomposites,” 1998.

  10. Principal inventor of a U.S. patent (5,728,637) on “Nanocrystalline Alumina-Diamond Composites,” March 17, 1998.


PROFESSIONAL AFFILIATIONS

The Minerals, Metals and Materials Society (TMS)

  • Vice-chair (2010-2013) of TMS Structural Materials Division Council

  • Member, Energy Materials Innovation Impact Team (Materials Integration in Clean Energy Systems)

  • Past Chair (2002-04) of the joint ASM/TMS Committee on Mechanical Behavior of Materials

  • Member, TMS Shaping & Forming Committee, TMS Powder Materials Committee

American Society of Metals (ASM)

  • Past Vice-Chair of the Nanomaterials Task Force

  • Past Member of New Products and Services Committee
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