Comparative behaviour of cobalt and iron base hardfacing alloys

被引：22

作者：

Liu, D. S. ^{[1
]}

Liu, R. P. ^{[1
]}

Wei, Y. H. ^{[1
]}

Qiu, Y. ^{[1
]}

Pan, P. ^{[2
]}

Zhu, K. ^{[1
]}

Gao, W. L. ^{[1
]}

机构：

[1] Nanjing Univ Aeronaut & Astronaut, Sch Mat Sci & Engn, Nanjing 210016, Peoples R China

[2] Shanghai Inst Space Prop, Shanghai 200233, Peoples R China

来源：

SURFACE ENGINEERING | 2012年 / 28卷 / 05期

关键词：

Cobalt base; Iron base; Hardfacing; Temper; Shock; Wear; WEAR-RESISTANCE; ABRASIVE WEAR; SLIDING WEAR; SURFACE; CARBIDE; TEMPERATURE; STELLITE-6; COATINGS; DEPOSITS; MODEL;

D O I：

10.1179/1743294411Y.0000000090

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

This paper aims to compare the behaviour of cobalt and iron base hardfacing alloys on hot forging dies under temper, shock and wear. Tempering resistance, shocking behaviour and wear resistance were investigated using a tubular furnace, press and pin on disc tribometer respectively. The results showed that the thermal stability of commercial iron base hardfacing alloy (named RMD248) is good below 550 degrees C but poor in the case of higher temperature, whereas the cobalt base hardfacing alloy presents superior tempering resistance. The cobalt base hardfacing alloy possesses excellent shock hardening properties at all the experimental temperatures, but RMD248 does not, especially at high temperature (600 degrees C). Compared with the hardfacing layer produced by RMD248, the cobalt base hardfacing layer produces high wear resistance at 600 degrees C and high temperature oxidation resistance at 600 degrees C for 100 h.

引用

页码：338 / 344

页数：7

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