| 球墨铸铁的激光相变硬化 |
| |
| 引用本文： | 樊湘芳,何彬,罗玉梅.球墨铸铁的激光相变硬化[J].金属热处理,2006,31(11):29-31. |
| |
| 作者姓名： | 樊湘芳 何彬 罗玉梅 |
| |
| 作者单位： | 南华大学,机械工程学院,湖南,衡阳,421001;邵阳学院,机械工程系,湖南,邵阳,422004 |
| |
| 摘 要： | 利用TJ—HL-T5000激光器，对QT600-3球墨铸铁进行激光相变硬化研究，测量了淬硬层深度和硬度分布，并对其金相组织进行了观察和分析。结果表明，QT600—3球墨铸铁激光淬硬层组织的表层结构致密，硬度可达920HV，淬硬深度约为0．5mm，从表面沿深度方向出现包围石墨球的马氏体壳组织，对提高耐磨性有利。
|
| 关 键 词： | QT600-3球墨铸铁 激光相变硬化 |
| 文章编号： | 0254-6051（2006）11-0029-03 |
| 收稿时间： | 2006-04-16 |
| 修稿时间： | 2006-04-16 |
Laser Hardening of Nodular Cast Iron |
| |
| FAN Xiang-fang,HE Bin,LUO Yu-mei.Laser Hardening of Nodular Cast Iron[J].Heat Treatment of Metals,2006,31(11):29-31. |
| |
| Authors: | FAN Xiang-fang HE Bin LUO Yu-mei |
| |
| Abstract: | The laser hardening was carried out for QT600-3 nodular cast iron using TJ-HL-T5000 laser. The hardened depth and the hardness distribution in cross-section of the hardened layer were tested and microstructure in the hardened layer was observed and analyzed. The results show that the microstnlcture in the hardened layer becomes compact,and the microhardness reaches 920 HV, the hardened depth is approximately 0. 5 mm. The microstructure of martensite surrounding the spheroidal graphite appears in the direction of surface to inside, which can enhance the wearability. |
| |
| Keywords: | QT600-3 nodular cast iron laser beam transformation hardening |
| 本文献已被 维普 万方数据 等数据库收录！ |
|
