Scholarlink

<p>Microstructure and fracture mechanism for electroslag remelting (ESR) + rolling + annealing T15 high speed steels (HSS) strengthened by different heat treatment systems were compared with those of the sample that was not heat-treated. Their wear behaviors using Si<sub>3</sub>N<sub>4</sub> ball counterface at room temperature and high temperature were also investigated, respectively. The results showed that volume fraction and sphericity of carbides were decreased and increased after heat treatment, respectively. It displayed quite different fracture mechanisms between unheat-treated and heat-treated samples. And it also showed completely diverse wear properties and behaviors for the samples after heat treatment whether at room or high temperature. The strengthened wear properties are attributed to the improvement of characteristics for the carbides and matrix caused by heat treatment. Besides, the surface of Si<sub>3</sub>N<sub>4</sub> is mainly worn by abrasive wear at room temperature, while almost no wear on that of Si<sub>3</sub>N<sub>4</sub> at high temperature. There chiefly occurs ploughing wear accompanied by oxidative wear for HSS at room temperature, but the surface of HSS is principally worn by oxidative wear accompanied by adhesion wear at high temperature.</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

Cross-scale influence of heat treatment-induced microstructure evolution on the gradient temperature wear mechanism of tungsten T15 high speed steel

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年7月24日

查看全文
  • Jipeng Jiang,
  • Shilong Liang,
  • Qi Wang,
  • Yunjin Lai,
  • Qingxiang Wang,
  • Shaoqiang Li,
  • Dongyang Li

摘要

Microstructure and fracture mechanism for electroslag remelting (ESR) + rolling + annealing T15 high speed steels (HSS) strengthened by different heat treatment systems were compared with those of the sample that was not heat-treated. Their wear behaviors using Si3N4 ball counterface at room temperature and high temperature were also investigated, respectively. The results showed that volume fraction and sphericity of carbides were decreased and increased after heat treatment, respectively. It displayed quite different fracture mechanisms between unheat-treated and heat-treated samples. And it also showed completely diverse wear properties and behaviors for the samples after heat treatment whether at room or high temperature. The strengthened wear properties are attributed to the improvement of characteristics for the carbides and matrix caused by heat treatment. Besides, the surface of Si3N4 is mainly worn by abrasive wear at room temperature, while almost no wear on that of Si3N4 at high temperature. There chiefly occurs ploughing wear accompanied by oxidative wear for HSS at room temperature, but the surface of HSS is principally worn by oxidative wear accompanied by adhesion wear at high temperature.