Yuan Jianbo, Yang Dejun, Wang Guangyong, Zhang Wenqi. A Study of the Susceptible Sites for Pitting of lCrl8Ni9Ti Stainless Steel[J]. Chinese Journal of Engineering, 1988, 10(1): 96-100. DOI: 10.13374/j.issn1001-053x.1988.01.015
Citation: Yuan Jianbo, Yang Dejun, Wang Guangyong, Zhang Wenqi. A Study of the Susceptible Sites for Pitting of lCrl8Ni9Ti Stainless Steel[J]. Chinese Journal of Engineering, 1988, 10(1): 96-100. DOI: 10.13374/j.issn1001-053x.1988.01.015
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A Study of the Susceptible Sites for Pitting of lCrl8Ni9Ti Stainless Steel

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  • The influence of the TiN inclusion on the pitting initiation has been studied. The test results shown that the susceptible sites for pitting initiation of lCr18Ni9Ti in microfield exist around the TiN inclusion. The results by AEM show that the area around the TiN inclusion is lack of Cr,its peak value of Cr/Fe + Ni vs spurttings depth curve is less than that of the site for the TiN inclusion. The sites around TiN inclusion are the valuable area of the passive film. TiN inclusion lower the value of pitting potential in microfield or the ability in pitting resisting.
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