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3 0Cr16Ni5Mo1超级马氏体不锈钢淬火态试样与QT试样显微组织的TEM分析

Fig.3 TEM analyses of the as-quenched and QT 0Cr16Ni5Mo1 super martensitic stainless steel samples
(a) bright-field (BF) image with corresponding selected area electron diffraction (SAED) pattern (inset) of the as-quenched sample
(b) BF image and SAED pattern (inset) of the QT sample
(c) dark-field (DF) image of the QT sample using g = (

\bar{1} 1 \bar{1}

) _γ as the operating reflections showing film-like RA
(d) EDS line scanning results along the arrow in Fig.3c
(e) element distribution mappings of Fig.3b
(f) HRTEM image corresponding to the marked area in Fig.3b
(g) magnified HRTEM image and fast Fourier transform (FFT) result of M₂₃C₆ carbides
(h) magnified HRTEM image and FFT result of RA