摘要
利用放电等离子烧结（SPS）技术在水泵《轮（45钢）基体上制备了Ni基合金涂层,以增加水泵《轮片表面的抗汽蚀及耐磨性。分析测试了涂层及界面的组织和性能,并与基体比较,结果表明：涂层与基体钢连接良好,抗拉强度为700 MPa;涂层表面硬度和体积磨损率分别为64.32 HRC和5.43伊10-2cm3/h,而基体45钢分别为34～38 HRC和1.09伊10-1cm3/h;涂层密度为7.75 g/cm3,与基体相当;《轮的表面物理性能得到提高。
Ni-based self-fluxing alloy coatings were prepared on pump impeller （45 steel） substrate by spark plasma sintering（SPS）.in order to increase the pump impeller surface of anti-cavitation and wear resistance.The microstructure and properties of the coating were analyzed, and compared with the matrix.The results showed that：the value of intensity of tension between coating and substrate steel was 700 MPa with good combination.The case hardness and volumetric wear rate of coating were 64.32 HRC and 5.43×10-2 cm3/h ,respectively.In comparison ,the values of matrix of 45 steel were 34-38 HRC and 1.09×10-＊ cm3/h ,respectively.The density of coating was 7.75 g/cm3,and the same with matrix.The impeller surface physical properties were improved.
出处
《现代农业科技》
2013年第21期209-210,218,共3页
Modern Agricultural Science and Technology
