逆转变奥氏体对<strong>0Cr16Ni5Mo1</strong>超级马氏体不锈钢低温冲击韧性的影响

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4 淬火+临界区退火(QI)试样与QIT试样显微组织的TEM分析

Fig.4 TEM analyses of the QI and QIT samples
(a) BF image of QI sample, the Ni contents at the marked points were measured by EDS
(b) DF image and SAED pattern (inset) of QI sample showing tempered martensite (TM) and fresh martensite (FM)
(c) element distribution mappings of Fig.4a
(d) BF image of QIT sample
(e) DF image showing and SAED pattern (inset) of QIT sample using g = (

1 \bar{1} 1

) _γ as the operating reflections showing film-like RA
(f) DF image of QIT sample using g = (

110

) _α as the operating reflections showing TM
(g) element distribution mappings of Fig.4d
(h) EDS line scanning results along the arrow in Fig.4e