晶粒尺寸对304奥氏体不锈钢组织演变和性能的影响

孙京丽,周海涛,陈莉,吴宏,刘维丽,姚斐,徐玉棱

Grain Size Effect on Microstructure Evolution and Properties of 304 Austenitic Stainless Steel

Jingli SUN,Haitao ZHOU,Li CHEN,Hong WU,Weili LIU,Fei YAO,Yuling XU

表3 单位面积特殊晶界分数

Table 3 Fraction of special grain boundaries per unit area

Specimen CSL/% Σ3/% Σ9/% Σ27/% R1-1# 57.6 50.8 1.8 0.7 R3-1#-10% 67.8 60.6 3.1 1.0 R1-2# 64.3 60.4 1.0 0.4 R3-2#-10% 55.3 47.2 2.9 1.1