小冲杆技术及其在材料与铅铋脆化效应研究中的应用

和雅洁, 陈灵芝, 阮章顺, 付晓刚, 纪琤, 龙斌

Progress of Small Punch Test Technique and Its Application in Detecting Embrittlement Effect of Molten Lead-bismuth on Metallic Materials

HE Yajie, CHEN Lingzhi, RUAN Zhangshun, FU Xiaogang, JI Cheng, LONG Bin

表1 T91钢在不同条件下氧化产物情况

Table 1 Oxidation products of T91 steel under different conditions

Condition	Specimen	O₂ exposure time h	O₂ pressure MPa	Main type of superficial oxide	Estimated thickness (oxide atomic monolayer)
Non-oxidized	DNO2	0	0	-	-
Low oxidation	D0.5O2	0.5	0.002	Cr₂O₃	2~3
Medium oxidation	D4O2	4~8	0.002	Fe₁₊_x Cr_2-_x O₄	5~6
Air-oxidized	DAO2	100	0.021	Fe₂O₃	11~12