Scholarlink

<p>Cr-related impact abrasive wear behavior of wear-resistant steels was investigated. The steels were quenched at 1040&#xa0;°C and tempered at 540-600&#xa0;°C. Hardness and impact toughness were measured using hardness tester and an impact testing machine, respectively. Dynamic load abrasive wear tests were conducted. Microstructure was characterized. It was found that Cr3 (3 wt.% Cr) steel tempered at 540&#xa0;°C exhibited highest wear resistance with wear ratio of 1.153 as compared to conventional Cr-Mo steel. It was contributed to highest hardness of 510.96 ± 5 HV and low impact toughness of 183 ± 2&#xa0;J. In comparison, Cr2 (2 wt.% Cr) steel tempered at 580&#xa0;°C behaved lowest wear resistance with wear ratio of 1.052 as compared to Cr-Mo steel. The lowest wear ratio thanks to the low hardness and relatively higher impact toughness. The higher impact toughness of Cr2 steel, the thicker of work-hardened layer (190 ± 5&#xa0;µm) entailed with larger increment of hardness. Furthermore, new impact abrasive wear model was constructed by incorporating Vickers hardness (denoted as <InlineEquation ID="IEq1"> <EquationSource Format="TEX">\(H_{m}\)</EquationSource> <EquationSource Format="MATHML"><math> <msub> <mi>H</mi> <mi>m</mi> </msub> </math></EquationSource> </InlineEquation>) into traditional three-body abrasive wear model, <InlineEquation ID="IEq2"> <EquationSource Format="TEX">\(V_{{{\text{abr}}}} = A.\omega /H_{m}\)</EquationSource> <EquationSource Format="MATHML"><math> <mrow> <msub> <mi>V</mi> <mtext>abr</mtext> </msub> <mo>=</mo> <mi>A</mi> <mo>.</mo> <mi>ω</mi> <mo stretchy="false">/</mo> <msub> <mi>H</mi> <mi>m</mi> </msub> </mrow> </math></EquationSource> </InlineEquation>, by which the relationship between impact abrasive wear loss and Vickers hardness was interpreted.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Cr Related Impact Abrasive Wear Mechanism of Low Alloy Wear-Resistant Steel

  • 期刊论文

  • 发表日期：

    2026年5月12日

查看全文
  • Yunpeng Zhao,
  • Riming Wu,
  • Wei Li,
  • Boqian Bian,
  • Zihui Chen

摘要

Cr-related impact abrasive wear behavior of wear-resistant steels was investigated. The steels were quenched at 1040 °C and tempered at 540-600 °C. Hardness and impact toughness were measured using hardness tester and an impact testing machine, respectively. Dynamic load abrasive wear tests were conducted. Microstructure was characterized. It was found that Cr3 (3 wt.% Cr) steel tempered at 540 °C exhibited highest wear resistance with wear ratio of 1.153 as compared to conventional Cr-Mo steel. It was contributed to highest hardness of 510.96 ± 5 HV and low impact toughness of 183 ± 2 J. In comparison, Cr2 (2 wt.% Cr) steel tempered at 580 °C behaved lowest wear resistance with wear ratio of 1.052 as compared to Cr-Mo steel. The lowest wear ratio thanks to the low hardness and relatively higher impact toughness. The higher impact toughness of Cr2 steel, the thicker of work-hardened layer (190 ± 5 µm) entailed with larger increment of hardness. Furthermore, new impact abrasive wear model was constructed by incorporating Vickers hardness (denoted as \(H_{m}\) H m ) into traditional three-body abrasive wear model, \(V_{{{\text{abr}}}} = A.\omega /H_{m}\) V abr = A . ω / H m , by which the relationship between impact abrasive wear loss and Vickers hardness was interpreted.