Wear and Corrosion Evaluation of Pack Chromized AISI 1060 Steel
Pack chromizing is an environmentally acceptable alternative to electrolytic chromium for the purpose of obtaining wear and corrosion resistant layers.In this work,samples of AISI 1060 steel were chromized during 6 and 9h at 1000 and 1050℃ with activator concentrations of 6 and 12％. Optical micrographs of sample cross sections and X-ray patterns were obtained after the chromizing treatment. The thickness of the formed layers and the Vickers microhardness profiles were obtained. Wear tests were performed in a micro-wear machine under dry conditions and corrosion resistance was evaluated using polarization curves in natural sea water. Pack chromizing resulted in the formation of layers with high hardness, wear and corrosion resistance. The increase in activator concentration caused no significant change on the morphology and thickness of the obtained layers. The layers produced at 1050℃ yielded only the (Cr,Fe)2N1-x phase and those obtained at 1000℃ were composed of a mixture of (Cr,Fe)7C3 and (Cr,Fe)2N1-x, for both treatment times. The treatment temperature of 1050℃ resulted in the thicker layers and greater wear and corrosion resistance.
pack chromizing z-ray diffraction wear corrosion
Fernandes, F.A.P. Heck,S.C. Picon,C.A. Totten,G.E. Casteletti, L.C.
Sao Carlos School of Engineering,EESC-USP,Sao Carlos,SP,Brazil Engineering School ofllha Solteira,FEIS-UNESP,Ilha Solteira,SP,Brazil Portland State University,Department of Mechanical and Materials Engineering,Portland,OR,USA
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
360-363
2009-10-27（万方平台首次上网日期，不代表论文的发表时间）