Mechanical Behavior of Nanostructured Materials: Mechanical Behavior of Bulk Nanostructured Materials II
Sponsored by: TMS Materials Processing and Manufacturing Division, TMS Structural Materials Division, TMS: Mechanical Behavior of Materials Committee, TMS: Nanomechanical Materials Behavior Committee
Program Organizers: Xinghang Zhang, Purdue University; Yuntian Zhu, North Carolina State University; Joseph Poon, University of Virginia; Suryanarayana Challapalli, University of Central Florida; Enrique Lavernia, University of California, Irvine; Haiyan Wang, Texas A&M University
Tuesday 8:30 AM
February 28, 2017
Location: San Diego Convention Ctr
Funding support provided by: AJA International; Hysitron Inc.
Session Chair: Enrique Lavernia, University of California; Xiaoxu Huang, Technical University of Denmark ; Kaiyuan Yu, China University of Petroleum
8:30 AM Invited
Mechanical Behaviors of Gradient Nanostructured Materials: Ke Lu1; 1Institute of Metal Research, Chinese Academy of Sciences
Gradient nanostructured materials are structurally characterized by a graded spatial variation of microstructural length scale from nanometers to the macro-scale. Such a unique architecture enables fundamentally different mechanical responses in the gradient nanostructured materials compared with their homogeneous nanostructured counterparts. In this talk, experimental studies over the past years on mechanical properties and performance of gradient nanostructured materials will be summarized and reviewed, including tensile strength and ductility, work-hardening, fatigue behavior, strain-induced surface roughening, as well as friction and wear properties. Plastic deformation mechanism of the gradient nanostructures will be analyzed in comparison with the homogeneous nanostructures. Future perspectives and major challenges on this novel nanostructured material will be addressed as well.