耐黄碱泵用铸造Ni－Mo合金的组织与性能  

Microstructure and properties or cast Ni-Mo alloy for yellow alkali resistant pumps

作　　者：秦紫瑞[1] 孙敬元 郭珊[1] 高文华 

机构地区：[1]大连理工大学,吉林化学工业公司,大连耐酸泵厂

出　　处：《石油机械》1995年第10期21-25,共5页China Petroleum Machinery

摘　　要：采用金相显微镜、ｘ射线衍射、电子探针和透射式电子显微镜相结合的分析方法，研究了铸造Ｎｉ－Ｍｏ合金的组织；通过均匀腐蚀、晶间腐蚀和点腐蚀等多种腐蚀试验方法研究了合金的耐蚀性能。试验结果表明，铸造Ｎｉ－Ｍｏ合金在６０％Ｎａ２Ｓ、温度为７５℃黄碱介质的苛刻条件下具有良好的耐蚀性能。这种合金还具有较好的综合机械性能与铸造性能。The microstructure of cast Ni-Mo alloy is studied by means of a combined analysis with metallurgical microscope, X-ray diffraction instrument, electron probe and transmissive electron microscope, and the corrosion-resistance of the alloy is investigated by tests of uniform corrosion, intercrystalline corrosion and pitting corrosion. Test result shows that the cast Ni-Mo alloy has good corrosion-resistance in yellow alkali with 60% Na2S at 75℃, and it also has good synthetic mechanical properties and good castability.

关 键 词：耐腐蚀泵 合金 金相分析 性能 碱腐蚀 泵 

分 类 号：TH3[机械工程—机械制造及自动化] TG115.21[金属学及工艺—物理冶金]