逆转变奥氏体对0Cr16Ni5Mo1超级马氏体不锈钢低温冲击韧性的影响

宋逸思, 廖瑜, 李传维, 陈益华, 顾剑锋

Effects of Reversed Austenite on the Cryogenic Impact Toughness of 0Cr16Ni5Mo1 Super Martensitic Stainless Steel

SONG Yisi, LIAO Yu, LI Chuanwei, CHEN Yihua, GU Jianfeng

图13 QT和QIT试样-196 ℃冲击断口纵截面的SEM像及不同区域的EBSD相图

Fig.13 SEM images showing longitudinal section of impact fracture of QT (a) and QIT (b) samples at -196 oC; EBSD phase maps taken at the impact fracture sites as marked in Fig.13a (c) and Fig.13b (d); EBSD phase map taken at the area ~200 μm from the fracture surface (e); and EBSD phase map taken at the undeformed end of the specimen (f)