【摘要】 在MMG - 2 0 0高温氧化 冲刷腐蚀磨损试验机上 ,考察了Al2 O3/不锈钢基、WC/不锈钢基表面复合材料在模拟湿法磷酸工况下的冲蚀磨损性能 ,并与目前在此工况中使用较好的高铬钢进行了对比 .研究结果表明 :当冲蚀角分别为 30°和 60°时 ,这两种复合材料的抗冲蚀磨损性能均优于高铬钢 ,而Al2 O3/不锈钢基复合材料的抗冲蚀磨损能力又优于WC/不锈钢基复合材料 ;复合材料中陶瓷颗粒与金属基体的界面是影响其冲蚀磨损性能的主要因素 ,改善界面的抗腐蚀特性 ,预期可进一步提高复合材料的抗磨性 .更多还原

【Abstract】 The erosive wear characteristics of alumina/stainless steel composite, WC/stainless steel composite and high chromium steel(as reference material) were investigated on the erosive wear tester of MMG-200 simulating the erosion in wet phosphoric acid solution. Results show that under the erosive angles of 30 and 60 degrees ,the wear resistance of the composites is superior to that of the high chromium steel, and the wear resistance of alumina/stainless steel composite is superior to that of the WC/stainless steel compostie. The main factor influencing the erosive wear resistance of the composites is the interface between ceramic particles and metal matrix. It is possible to further increase the wear resistance of the composites through improving the corrosion resistance of the interface.更多还原