The server is under maintenance between 08:00 to 12:00 (GMT+08:00), and please visit later.
We apologize for any inconvenience caused
Login  | Sign Up  |  Oriprobe Inc. Feed
China/Asia On Demand
Journal Articles
Laws/Policies/Regulations
Companies/Products
SURFACE NANOCRYSTALLIZATION OF AISI 304 STAINLESS STEEL INDUCED BY SURFACE MECHANICAL ATTRITION TREATMENT Ⅱ. Grain Refinement Mechanism
Author(s): 
Pages: 347-350
Year: Issue:  4
Journal: ACTA METALLURGICA SINICA

Keyword:  表面机械研磨AISI 304不锈钢表面纳米化晶粒细化机制;
Abstract: 采用表面机械研磨处理(SMAT)在AISI304不锈钢上制备出纳米结构表层,用透射电镜(TEM)研究组织演变过程.晶粒细化机理可归纳如下:位错在{111}面上滑移并相互交割形成网格结构;单系孪晶形成并逐渐过渡到多系孪晶;多系孪晶相互交割使晶粒尺寸不断减小,并在孪晶交叉处形成了马氏体相;孪晶系增多与孪晶重复交割强度加大使得细化晶粒的尺寸进一步减小;最终在大应变量、高应变速率和多方向重复载荷的作用下,形成等轴状、取向呈随机分布的马氏体相纳米晶组织.
Related Articles
loading...