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2 单位面积晶界长度(mm/mm2)

Table 2 Length of the grain boundaries per unit area

Specimen CSL Σ3 Σ9 Σ27 HAGB LAGB R1-1# 59.6 52.6 1.9 0.7 103.6 3.9 R3-1#-10% 76.2 68.0 3.5 1.1 112.3 2.4 R1-2# 34.4 32.3 0.5 0.2 53.5 5.5 R3-2#-10% 54.8 46.7 2.9 1.1 99.0 3.5