ZHANG Rui-qian
,
LI Yan
,
WANG Xiao-min
钢铁研究学报(英文版)
The compatibility of the austenitic AISI 304 steel with Pb-Bi-Sn alloy was analyzed. The AISI 304 steels were immersed in stagnant molten Pb-33.3Bi-33.3Sn alloy at 400, 500 and 600 ℃ for different exposure times (100-2000 h) respectively. X-Ray diffraction spectrum (XRD) with a Y-4Q system (CuKα, λ=0.15478 nm) was used to identify the phases on the surface of specimens after exposing to Pb-Bi-Sn liquid metal (LM). The surface and cross section of the specimens were analyzed by means of scanning electron microscopy (SEM) and energy dispersive X-ray analysis (EDX). The result showed that a FeSn alloy layer on the surface of all specimens was formed, and it prevented AISI 304 steel matrix from penetration attack and loss of alloy elements at 400 and 500 ℃.
关键词:
austenitic steel
,
lead-bismuth-tin alloy
,
compatibility
,
liquid-metal bond
,
uranium-zirconium hydride fuel
