| Cr12钢激光硬化处理后的组织 |
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| 引用本文： | 朱捷,刘家浚,陈南平.Cr12钢激光硬化处理后的组织[J].材料研究学报,1990,4(6):469-473. |
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| 作者姓名： | 朱捷 刘家浚 陈南平 |
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| 作者单位： | 清华大学
(朱捷，刘家浚)，清华大学(陈南平) |
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| 摘 要： | 激光相变硬化处理可以使 Cr12钢的硬度提高至～1100HV,并细化其组织。激光相变硬化处理主要通过改变碳化物的溶解程度及合金元素的扩散均匀程度,影响γ的化学成分及分布、M_s点的位置及γ_r 的含量。激光处理后,γ_r 最少时硬度最高。
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| 关 键 词： | 激光相变硬化 残余奥氏体 组织结构 |
| 收稿时间： | 1990-12-25 |
| 修稿时间： | 1990-12-25 |
MICROSTRUCTURE OF LASER HARDENED Cr12 STEEL |
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| ZHU Jie,LIU Jiajun,CHEN Nanping.MICROSTRUCTURE OF LASER HARDENED Cr12 STEEL[J].Chinese Journal of Materials Research,1990,4(6):469-473. |
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| Authors: | ZHU Jie LIU Jiajun CHEN Nanping |
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| Affiliation: | Tsinghua University |
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| Abstract: | Laser hardening can increase the hardness of Cr12 steel up to about1100HV and fine its microstructure.It is mainly due to the improvement of dissolution ofcarbides and homogenity of elements diffusion,by which the composition of austenite,po-sition of Ms and content of retained austenite can all be changed.The highest hardness iscorresponding to the least content of retained austenite after laser treatment. |
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| Keywords: | laser transformation hardening retained austenite microstructure |
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