| 钻杆接头材料激光相变硬化层的组织和硬度研究 |
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| 引用本文： | 刘丽,吴东江,孙友宏,李守春,庄娟.钻杆接头材料激光相变硬化层的组织和硬度研究[J].探矿工程,2002(6):17-19. |
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| 作者姓名： | 刘丽 吴东江 孙友宏 李守春 庄娟 |
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| 作者单位： | [1]吉林大学物理中心，吉林长春130026 [2]新加坡国立大学数据存储研究所，新加坡117608 |
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| 基金项目： | 原地质矿产部青年地质学家基金资助项目 (Qn979819) |
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| 摘 要： | 采用功率为2kW、扫描速度为100mm/min的工艺参数对钻杆接头材料30CrMnSiA钢进行了表面相变硬化处理，研究了相变层的组织和硬度特征，实验结果表明,30CrMnSiA钢表面相变硬化层分为完全淬硬层，过渡层和受热影响的基体组织，硬化层的显微组织明显细化，其表面层的硬度比高频淬火的硬度提高了30%，淬硬层深度达1.7mm，比高频淬火深度提高近1倍。
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| 关 键 词： | 钻杆接头材料 激光相变硬化层 30CrMnSiA钢 显微组织 硬度 高频淬火 |
| 修稿时间： | 2001/12/4 0:00:00 |
Study on Microstructure and Hardness of Laser-phase Hardened-layer of Drill-rod Joint Material |
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| LIU Li,WU Dong jiang,SUN You hong,LI Shou chun,ZHUANG Juan.Study on Microstructure and Hardness of Laser-phase Hardened-layer of Drill-rod Joint Material[J].Exploration Engineering(Drilling & Tunneling),2002(6):17-19. |
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| Authors: | LIU Li WU Dong jiang SUN You hong LI Shou chun ZHUANG Juan |
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| Abstract: | Surface hardening of drill rod joint material 30CrMnSiA by using 2 kW power and 100 mm/min scanning velocity has been performed. The microstructure and hardness of the transformation layer have been studied. The experimental results show that the surface hardened layer consists of the hardened region and the interim region and the temper microstructure. The microstructure of hardened layer was very tiny. Its hardness is 30% higher than the high frequency quenched. Quenched depth is 1 7 mm and one time higher than the high frequency quenched |
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| Keywords: | drilling rod joint 30CrMnSiA steel laser phase change hardening micro tissue hardness |
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