B、Ce和W元素对Fe-Mo-Cr-Ni合金组织及耐熔锌腐蚀性能的影响研究  

Research on Effects of B, Ce and W on Microstructure and Corrosion-Resistance of Fe-Mo-Cr-Ni Alloy in Molten Zinc

作　　者：雷四雄 王鑫铭 尹付成 刘新 LEI Sixiong;WANG Xinming;YIN Fucheng;LIU Xin(AECC South Industry Company Limited,Zhuzhou 412002,China;School of Materials Science and Engineering, Xiangtan University,Xiangtan 411105,China)

机构地区：[1]中国航发南方工业有限公司,湖南株洲412002 [2]湘潭大学材料科学与工程学院,湖南湘潭411105

出　　处：《热加工工艺》2018年第22期62-65,69,共5页Hot Working Technology

基　　金：湖南省自然科学省市联合基金项目(2018JJ4057)

摘　　要：采用扫描电镜(SEM)和能谱仪(EDS),研究了元素B、Ce和W对Fe-Mo-Cr-Ni合金组织及耐熔锌腐蚀性能的影响。结果表明,B元素有利于网状形貌共晶成分α-Fe+Fe2B的生成;Ce元素可细化晶粒,但组织热稳定性差;W元素会引起组织粗大,并提高Mo和Cr元素在Laves相中的含量。元素B、Ce和W均能提升Fe-Mo-Cr-Ni合金的耐熔锌腐蚀性,其中添加1wt%W元素的Fe-Mo-Cr-Ni合金耐蚀效果最佳,然后是1wt%B、1wt%Ce。Using scanning electron microscopy(SEM) and X-ray diffraction analysis(XRD) method, the effects of B, Ce and W on the microstructure and corrosion resistance of Fe-Mo-Cr-Ni alloy in molten zinc were studied. The results indicate that the B addition improves the formation of eutectic α-Fe+Fe2B with reticular morphology. Ce addition could refine the grain greatly and reduce the thermal resistance of Fe-Mo-Cr-Ni alloy. W addition can cause the generation of thick and big microstructure as well as the increase of Mo and Cr element content in Laves phase. The corrosion resistance of Fe-Mo-Cr-Ni alloys in molten zinc improves by the addition of B, Ce and W, furthermore, the Fe-Mo-Cr-Ni alloys with 1wt% W addition exhibit the best corrosion resistance, and 1wt%B, 1wt% Ce sucessively.

关 键 词：Fe—Mo—Cr-Ni合金 腐蚀 熔锌 

分 类 号：TG142.7[一般工业技术—材料科学与工程]