The effects of microstructure on Vickers indentation damage in TiC-316L stainless steel cermets

被引：18

作者：

Jin, Chenxin ^{[1
]}

Plucknett, Kevin ^{[1
]}

机构：

[1] Dalhousie Univ, Dept Proc Engn & Appl Sci, Mat Engn, 1360 Barrington St, Halifax, NS B3H 4R2, Canada

来源：

INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS | 2016年 / 61卷

基金：

加拿大自然科学与工程研究理事会; 加拿大创新基金会;

关键词：

Vickers hardness; Indentation size effect; Indentation fracture resistance; Palmqvist cracking; Scanning electron microscopy; MEASURING FRACTURE-TOUGHNESS; MECHANICAL-PROPERTIES; PALMQVIST CRACK; SILICON-CARBIDE; SLURRY EROSION; HARDNESS; CERAMICS; WEAR; BRITTLENESS; EVOLUTION;

D O I：

10.1016/j.ijrmhm.2016.09.006

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Titanium carbide (TiC) based cermets are commonly used as wear resistance and corrosion resistance components. In the present work, the effects of microstructure of TiC-316L stainless steel cermets are assessed in terms of Vickers indentation damage, with both the steel binder content and TiC grain size varied. Binder contents from 5 to 30 vol.% were examined, with samples fabricated using a simple vacuum melt-infiltration procedure at temperatures between 1475 degrees C and 1550 degrees C (held for up to 240 minutes). Two primary Vickers indentation-cracking patterns arise in these materials, namely median or Palmqvist cracks, and this response relates to both the volume fraction of ductile metal binder present and the binder ligament dimension. Focused ion beam microscopy has been utilised for sub-surface evaluation of the cracks, to confirm the anticipated crack patterns. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：151 / 161

页数：11

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