DEFORMATION TWINNING MECHANISMS IN FCC AND HCP METALS
We report recent work on twinning and detwinning in fee and hep metals based on the in situ and ex situ TEM observations and molecular dynamics simulations.Three aspects are discussed in this paper.(1) Detwinning in single-phase Cu with respect to growth twins,(2) deformation twinning in Ag-Cu composites,and (3) deformation twinning mechanisms in hep metals.The main conclusion is that the atomic structures of interfaces (twin boundaries,two-phase interfaces,and grain boundaries) play a crucial role in nucleating and propagating deformation twins.
twinning de-twinning,interfaces fec hcp
J.Wang I.J.Beyerlein N.Mara A.Misra C.N.Tome
MST-8,Los Alamos National Laboratory,Los Alamos,NM 8 7545,USA (T-3)Los Alamos National Laboratory,Los Alamos,NM 87545,USA (MPA-CINT),Los Alamos National Laboratory,Los Alamos,NM 87545,USA (MST-8),Los Alamos National Laboratory,Los Alamos,NM 87545,USA
国际会议
The Third International Conference on Heterogeneous Material Mechanics(第三届国际非均匀材料力学会议)
上海
英文
88-91
2011-05-22(万方平台首次上网日期,不代表论文的发表时间)