|
| 高速钢切削刀具超低温相变对耐磨性的影响 |
| The Influence of High Speed Steel Cutting Tool's Cryogenic Phase Transition upon the Wear Resistance |
| |
| DOI：10.3969/j.issn.1671-5322.2009.03.009 |
| 中文关键词: 高速钢 超低温 相变 耐磨性 尺度效应 |
| 英文关键词: high speed steel(HSS) cryogenic phase transition wear resistance size effect |
| 基金项目:福建省教育厅自然科学基金，福州大学科技发展基金，福建省属高等院校测试基金 |
|
| 摘要点击次数: 4325 |
| 全文下载次数: 3753 |
| 中文摘要: |
| 研究了回火态W6Mo5Cr4V2高速钢刀具在超低温温度场中发生相变.占高速钢体积百分数最大的回火马氏体脱溶出细小、弥散的碳化物颗粒,残留奥氏体也相继发生马氏体转变,最后残留2%左右.试验表明,超低温处理后的高速钢刀具的机械性能进一步增加,特别是耐磨性能显著提高,延长了高速钢刀具的使用寿命. |
| 英文摘要: |
| In the cryogenic temperature field,the phase transition of W6Mo5Cr4V2 high speed steel tool at tempered state is studied.The tempering martensite accounting for the largest volume percentage of high speed steel precipitates fine and dispersed carbide grains;the retained austenite continuously transforms into martensite too,and finally retains about 2%.The tests show that the mechanical properties of the HSS cutting tool by cryogenic treatment can be further increased,in particular,the antiwear property is observably raised.The service life of the HSS cutting tool is prolonged. |
|
查看全文
查看/发表评论 下载PDF阅读器 |
| 关闭 |