Effect of Chromium on Microstructure and Wear Resistance of Fe-Cr-C Hardfacing Alloys

Article Preview

Abstract:

In this paper, Fe-Cr-C hardfacing alloys with different chromium contents (7.5, 15, 20 and 32wt%, respectively) were deposited by PTA welding. Influence of Cr content on the hardfacing alloys was revealed by analyzing the microstructure, microhardness and wear behavior. The results showed that the primary phase changed from M3C to M7C3, and the eutectic phase changed from M7C3 to M23C6 with the addition of Cr content. The Cr content had a great influence on the hardness of the alloy. The higher the Cr content, the higher the hardness. The abrasiveness of the alloy was closely related to the Cr content. The wear resistance of the alloy increased with the addition of Cr content.

You might also be interested in these eBooks

Info:

Periodical:

Materials Science Forum (Volume 1001)

Pages:

41-46

Citation:

Online since:

July 2020

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2020 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

* - Corresponding Author

[1] Chang C M, Chen Y C, Wu W.C. Microstructural and abrasive characteristics of high carbon Fe-Cr-C hardfacing alloy [J]. Tribology International, 2010, 43(5): 929-934.

DOI: 10.1016/j.triboint.2009.12.045

Google Scholar

[2] Wang Q B, Wang Z H, Li S M. Microstructure and properties of the Fe-Cr-C hardfacing alloys with high carbon content [J]. Transactions of the China Welding Institution, 2004, 25(6):119-123.

Google Scholar

[3] Yang Q X, Zhou Y F, Yang Y L, et al. Research progress of wear-resistance Fe-Cr-C hardfacing alloys [J]. Journal of Yanshan University 2014, 38(3):189-196.

Google Scholar

[4] Wang S L, Cui L,He D Y, et al.Microstructure and wear resitance of hypoeutectic Fe-Cr-B-C hardfacing alloys [J]. Hot Working Technology,2016,45(1):30-33.

Google Scholar

[5] Wang S.L., Cui L, He D.Y., et al. Effect of chromium on microstructure and wear resitance of Fe-Cr-B-C hardfacing alloys after heat treatment [J]. Transactions of Materials and Heat Treatment, 2015, 36(10),224-229.

Google Scholar

[6] Wang Z.H, Wan G.L, He D.Y, et al. Microstructure and wear resitance of Fe-Cr-B-C hardfacing alloys [J]. Journal of Materials Engineering. 2014,10(9),57-62.

Google Scholar

[7] Wang Q.B, Wang Z H, Li S M. Microstructures of the Fe-Cr-C hardfacing alloys with high carbon contents [J].Materials for Mechanical Engineerning.2004, 28(10), 23-31.

Google Scholar