Effect of Heat Treatment Temperature on Properties of SiO2-ZrO2-Al2O3-CrO3 Coatings on Stainless Steel Substrate
The SiO2-ZrO2-Al2O3-CrO3 film is coated on the surface of stainless steel using analytical reagent TEOS, ZrOC12-8H2O, Al(NO3)3-9H2O and Cr(NO3)3-9H2O as precursor and basing on mole ratio to calculate through Sol-gel method. The phase transformation behavior, erosion resistance, thermal shock resistance and abrasion resistance of ceramic coating by different heat treatment are studied. The results show that: 1)The SiO2-ZrO2-AlO3-CrO3 gel coatings has non-crystalline structure after the treatment at 700℃ and 800℃. New substance is not created below 700℃ 2) The stainless steel substrate with ceramic coating has a higher erosion resistance at high temperature (700 ℃ and 800℃)than that without coating. 3) Thermal shock resistance of the samples treated in 700℃ is the best which has reached within 17-21cycles (900℃, air cooling). 4) The stainless steel substrate with ceramic coating has a higher abrasion resistance than that without coating. The samples treated at 700℃ and 800℃ have the best abrasion resistance.
heat treatment temperature stainless steel SiO2-ZrO2-Al2O3-CrO3 film the properties of ceramic coating
Li Feng-jiu Liu Shu-xian Niu Fu-sheng
Beijing Science and Technology University,Beijing,China Hebei Polytechnic University,Tangshan,China Hebei Polytechnic University,Tangshan,China
国际会议
The Fourth Asian Conference on Heat Treatment and Surface Engineering(第四届亚洲热处理及表面工程大会)
北京
英文
498-501
2009-10-27（万方平台首次上网日期，不代表论文的发表时间）