耐海水泵用新型双相不锈钢的研究

Study of new type duplex stainless steel for pumps in sea water.

研究了耐海水泵用新型双相不锈钢的组织及其耐蚀性能。通过金相显微镜和Ｘ射线衍射进行了金相组织观察与分析，由多种腐蚀试验结果表明，该钢在海水介质中具有优良的耐均匀腐蚀、晶间腐蚀性能，并具有比Ｃ１５钢更高的抗点蚀性能。

The composition and corrosion resistance of the new type duplex stainless steel for pumps in sea water were studied.The observations and analyses of the microstructure were conducted by using metallurgical microscopes and X ray diffraction.The corrosion results showed that the new type duplex stainless steel had good performance of uniform corrosion and intercrystalline corrosion,and higher pitting resistance than C15 steel.