Effect of nitrogen alloying on the microstructure and abrasive impact wear resistance of Fe-Cr-C-Ti-Nb hardfacing alloy

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• 作者：Jibo Wang^a ; Tiantian Liu^b ; Yefei Zhou^a ; ^c ; ^{yfzhou@ysu.edu.cn} ; Xiaolei Xing^a ; Sha Liu^a ; Yulin Yang^c ; Qingxiang Yang^a ; ^{qxyang@ysu.edu.cn}
• 关键词：Fe-Cr-C-Ti-Nb alloy ; Nitrogen ; Hardfacing ; (Fe ; Cr)7C3 ; (Ti ; Nb)(C ; N)
• 刊名：Surface and Coatings Technology
• 出版年：2017
• 出版时间：15 January 2017
• 年：2017
• 卷：309
• 期：Complete
• 页码：1072-1080
• 全文大小：2504 K
• 卷排序：309

文摘

Large primary (Cr, Fe)7C3 carbides in Fe-Cr-C-Ti-Nb hardfacing alloy surfaces are refined by nitrogen additive. (Ti, Nb)(C, N) with hardness of 27.6 GPa were found in Fe-Cr-C-Ti-Nb hardfacing alloy surfaces with nitrogen additive. Abrasive impact wear resistance of Fe-Cr-C-Ti-Nb hardfacing alloy surfaces has improved due to carbides refining. (Ti, Nb)(C, N) served as heterogeneous nucleation sites for primary (Cr, Fe)7C3 carbides is moderately effective.