Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7968923 | Materials Characterization | 2018 | 9 Pages |
Abstract
Coarse-grained NAB alloys are subjected to shot-peening (SP) treatment and the grain refinement mechanisms of various phases in shot-peened NAB alloys are investigated separately. The various phases in NAB alloys including α, β and three intermetallic phases (κii, κiii and κiv) display different grain refinement mechanisms. For the α phase, the main grain refinement mechanisms are dislocation segmentation and twinning intersection. For the β phase, the grain refinement is associated with the formation of nano twins. As for κ phases, the strip-shape κiii phases are fragmented after SP treatment while the κiv and κii phases present the twinning and dislocation deformation modes, separately.172
Related Topics
Physical Sciences and Engineering
Materials Science
Materials Science (General)
Authors
Bingjie Zhao, Yuting Lv, Yang Ding, Liqiang Wang, Weijie Lu,