文章基本信息

标题：Study on Thermal Stability of Hypereutectic Surfacing Alloy Fe2B Hard Phase
作者：Zhen Ma ; Liting Mu ; Jun Wang 等
期刊名称：IOP Conference Series: Earth and Environmental Science
印刷版ISSN：1755-1307
电子版ISSN：1755-1315
出版年度：2018
卷号：199
期号：5
页码：052051
DOI：10.1088/1755-1315/199/5/052051
语种：English
出版社：IOP Publishing
摘要：The microstructure properties of high-boron surfacing and the thermal stability of Fe₂B was investigated. Each of the specimens was characterized by metallographic techniques. Phase analysis of alloy was performed by X-ray diffraction. The results show that when the carbon content was 0.13 wt%, the weld surfacing structure was blocky and rod-shaped Fe₂B + Fe. When the carbon content was 0.57 wt%, the weld structure was a bulk Fe₂B and eutectic fishbone Fe₂B, and a chrysanthemum-like Fe₃(B,C). When the carbon content increased to 1.0 wt%, the fishbone tissue disappeared, and the eutectic structure consisted of chrysanthemum-like tissue. The structure was blocky Fe₂B and eutectic structure chrysanthemum Fe₃(B,C). After heat treatment, the microstructure of Fe₂B hard phase in the weld microstructure did not change, and kept block and a strip shape. Due to the high temperature effect, the eutectic fish bone Fe₂B + y-Fe and the eutectic chrysanthemum Fe₃(B,C) + y-Fe between the Fe₂B were converted into Fe₂B. Fe₂B hard phase has good thermal stability.