Study on microstructure and wear properties of different nickel base hardfacing alloys deposited on austenitic stainless steel

被引：59

作者：

Chakraborty, Gopa ^{[1
]}

Kumar, N. ^{[2
]}

Das, C. R. ^{[1
]}

Albert, S. K. ^{[1
]}

Bhaduri, A. K. ^{[1
]}

Dash, S. ^{[2
]}

Tyagi, A. K. ^{[2
]}

机构：

[1] Indira Gandhi Ctr Atom Res, Mat Dev & Technol Grp, Kalpakkam 603102, Tamil Nadu, India

[2] Indira Gandhi Ctr Atom Res, Mat Sci Grp, Kalpakkam 603102, Tamil Nadu, India

来源：

SURFACE & COATINGS TECHNOLOGY | 2014年 / 244卷

关键词：

Sliding wear; Steel; Hardfacing; Electron microscopy; Raman spectroscopy; HIGH-TEMPERATURE WEAR; WELD OVERLAY; LASER CLAD; BEHAVIOR; RESISTANCE; COATINGS; MOLYBDENUM; STELLITE; FRICTION; FLAME;

D O I：

10.1016/j.surfcoat.2014.02.013

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Results of studies carried out on the microstructure, hardness, and wear properties of three nickel base Ni-Cr-B-Si hardfacing alloys deposited on austenitic stainless steel by gas tungsten arc welding are presented here. Sliding wear resistance of the deposits is evaluated by ball-on-disc tribo-test followed by electron microscopy and Raman spectroscopy of the worn out surfaces. It is found that dilution in the deposit by the substrate alters microstructure and hardness and brings down wear resistance. The effect of dilution on wear resistance is more for the alloy with the highest alloy content due to change in the volume fraction of precipitate caused by dilution. Oxides formed on the wear track are different for these alloys and friction coefficients of the deposits are influenced by these oxide layers. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：180 / 188

页数：9

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