Methods of selectively cooling and quenching surface regions of high-strength transformation induced plasticity (TRIP) steel are provided. The method may comprise selectively cooling at least one region of an exposed surface of a hot-formed press-hardened component comprising a high-strength steel. Prior to selective cooling, the component has a microstructure comprising≧about % by volume retained austenite in a matrix of martensite. The selective cooling is conducted at a temperature of≦about − C. and forms at least one quenched region comprising≦about % by volume austenite. The TRIP steel may be zinc-coated and having a surface coating comprising zinc and substantially free of liquid metal embrittlement (LME). Zinc-coated hot-formed press-hardened components, including automotive components, formed from such methods are also provided.
Zinc-Coated Hot Formed High Strength Steel Part With Through-Thickness Gradient Microstructure
Methods of strengthening surface regions of high-strength transformation induced plasticity (TRIP) steel are provided. The method may comprise shot peening at least one region of an exposed surface of a hot-formed press-hardened component comprising a high-strength steel. Prior to shot peening, the component has a microstructure comprising ≧about 5% by volume retained austenite in a matrix of martensite. The shot peening is conducted at a temperature of
Philips - Shanghai City, China since Mar 2013
Principal Scientist and Team Leader
Philips - Briarcliff Manor, New York Oct 2006 - Feb 2013
Senior Member Research Staff
ISO/IEC JTC 1 Jun 2010 - Nov 2011
Technical Editor
Ecma International Mar 2009 - Nov 2011
Technical Editor
Intel - Hillsboro, Oregon Jan 2006 - Jul 2006
Research Intern
Education:
University of Florida 2002 - 2006
Ph.D., Electrical and Computer Engineering
Huazhong University of Science and Technology 1999 - 2002
Master, Communication Engineering
Huazhong University of Science and Technology 1995 - 1999
Bachelor, Communication Engineering
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Project Management Wireless Networking Team Management Mobile Devices Market Research Manufacturing Product Development Product Management Telecommunications Microsoft Office
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new technologies, business innovation, culture, geography, nature, tennis, travel, hiking
Honor & Awards:
Team Accomplishment Award for 2007 Frost & Sullivan Excellence in Research of the Year Award in the field of Cognitive Networks
Centerline (Windsor) Limited
Applications Manager
Spang & Company Aug 2012 - Mar 2013
Product Development
Centerline (Windsor) Limited Aug 2007 - Aug 2012
Metallurgist
National Research Council Canada Sep 2004 - Aug 2007
Research Associate
Gmx Associates Pte Jun 1998 - Jan 2000
R and D Engineer
Education:
University of Birmingham 2000 - 2003
Doctorates, Doctor of Philosophy, Philosophy
Tsinghua University
Bachelor of Engineering, Bachelors, Materials Science, Engineering
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Coatings Materials Thin Films Failure Analysis Alloys Engineering Heat Treatment R&D Lean Manufacturing Materials Science Manufacturing Product Development Powder X Ray Diffraction Surface Scanning Electron Microscopy Nanomaterials Design of Experiments Welding Manufacturing Engineering Surface Engineering Continuous Improvement Corrosion Material Selection Powder Metallurgy Machining Iso Machine Tools Robotics Electrochemistry Root Cause Analysis Mechanical Testing Electron Microscopy Engineering Management 5S Nanotechnology