Abrasive wear of WC-FeAl-B and WC-Ni3Al-B composites

被引：54

作者：

Ahmadian, M ^{[1
]}

Wexler, D ^{[1
]}

Chandra, T ^{[1
]}

Calka, A ^{[1
]}

机构：

[1] Univ Wollongong, Sch Mat & Mech Engn, Wollongong, NSW 2522, Australia

来源：

INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS | 2005年 / 23卷 / 03期

基金：

澳大利亚研究理事会;

关键词：

sliding wear; intermetallic matrix composites; hardmetals; WC composites; alummides;

D O I：

10.1016/j.ijrmhm.2004.12.002

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The abrasion resistance of WC-40vol%(FeAl-B), WC-40vol%(Ni-3-Al-B), and WC-40vol%Co, prepared from ultra fine precursor powders and processed by uniaxial hot pressing, has been investigated using a pin-on-drum tester. Intermetallic binders, with different amount of boron including 0, 250, 500, 750, and 1000 ppm B, were prepared in ultrafine form under controlled atmosphere using ring grinding, blended with submicron (0.8 mu m) WC powder and then uniaxially hot pressed at 1500 degrees C under a pressure of 20 MPa for 4 min in 10(-2) MPa argon atmosphere. In an additional investigation, wear results were compared with that of commercial H10F (WC-10wt%Co, WC particle size of 0.7 mu m). It was found that the wear resistance of WC-FeAl-B and WC-Ni3Al-B increased with the increasing amount of boron. WC-40vol%FeAl-B showed the highest abrasion resistance, close to that for WC-10wt%Co (H10F) composite, followed by WC-40vol%Ni3Al-B and WC-40vol%Co. (c) 2005 Elsevier Ltd. All rights reserved.

引用

页码：155 / 159

页数：5

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