摘要
Ｆｅ－Ｍｎ－Ｃｒ－Ｎ奥氏体钢在低温下形变组织具有严格的晶体学特征。穿晶脆断刻面是｛１１１｝γ，刻面上滑移带相交成６０°，两相交大角度１０９°２８′的｛１１１｝γ穿晶刻面上滑移带成对称状；沿形变孪晶界面脆断面为｛１１０｝面，相交形变孪晶夹角为７０°；滑移带在孪晶晶界处产生扭折，扭折角３５～４０°；在任意的金相断面上。
Deformation microstructure in a Fe Mn Cr N austenitic steel shows strict crystallographic features. The transgranular facets were identified as {111} γ , on which the intersecting angle between bands is 60°. The slip bands on two intersecting {111} γ (109°28 ′) display regular symmetry. The brittle fracture plane along the deformation twin is {110}. The angle between intersecting deformation twin is 70°. The slip bands were kinked at fcc twin boundaries with the kink angle 35～40°. The angle between different slip bands on the metallographs is 60～80°.
出处
《钢铁研究学报》
CAS
CSCD
北大核心
1998年第1期38-42,共5页
Journal of Iron and Steel Research
基金
机械工业技术发展基金
关键词
奥氏体
形变组织
晶体学
孪晶
穿晶刻面
austenite,deformation microstructure,crystallography,twin,transgranular facet
