摘要
采用金相显微镜、Ｘ射线衍射和电子探针相结合的方法，观察与分析了合金的金相组织，并采用多种腐蚀试验方法，研究了耐复合介质（４０％Ｈ３ＰＯ４＋２％ＨＦ＋２５ｇ／ＬＣａＳＯ４）的泵用新型合金在８０℃温度条件下的均匀腐蚀、晶间腐蚀与点蚀行为。试验结果表明，新型合金经１２２０℃×２ｈ水冷固溶化处理后，具有良好的耐均匀腐蚀性能、较高的抗晶间腐蚀与抗点蚀能力和良好的铸造性能。
The authors observe and analyze the metallographical structure of a new alloy used for pumps delivering multi-corrosive medium (40%H3PO4 + 2% HF+ + 25g/lCaSO4) by means of metallulgical microscope, X-ray diffractometer and electronic probe and study the process of uniform corrosion, intergranular corrosion and pitting of the alloy in the multi-corrosive medium at 80℃. Test shows that the alloy after a special treatment is characterized by high corrosion resistance and good castability.
出处
《石油机械》
北大核心
1996年第11期21-25,共5页
China Petroleum Machinery
关键词
泵用
合金
复合介质
腐蚀试验
金相分析
alloy
heat treatment
corrosion test
metallographic analysis
