| 激光重熔45钢工艺研究 |
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| 引用本文： | 姜伟,韩莉.激光重熔45钢工艺研究[J].新技术新工艺,2009(11):96-97. |
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| 作者姓名： | 姜伟 韩莉 |
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| 作者单位： | 海军航空工程学院,青岛分院,山东,青岛,266041 |
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| 摘 要： | 为提高45钢的综合力学性能，利用CO2激光器对其表面进行激光熔凝处理，分析了熔凝层的微观组织和显微硬度。结果表明，熔凝层质量优良，晶粒较基体明显细化，显微硬度较基体显著提高，平均硬度为700HV，最高达750HV，约是基体硬度的3倍。
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| 关 键 词： | 激光重熔 45钢 微观形貌 显微硬度 |
Research on the Process of Laser Re-melting on the Surface of 45 Steel |
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| JIANG Wei,HAN Li.Research on the Process of Laser Re-melting on the Surface of 45 Steel[J].New Technology & New Process,2009(11):96-97. |
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| Authors: | JIANG Wei HAN Li |
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| Affiliation: | (Qingdao Branch of Naval Aeronautical Engineering Academy, Qingdao 266041, China) |
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| Abstract: | In order to improve the mechanical properties of 45 steel, the surface of 45steel was treated by laser re-melting technology using CO2 laser. And then the microstructure and micro-hardness were analyzed. The experimental results indicate that the hardened layer has good quality, and the crystal grain is more refining than the substrates, meanwhile the micro-hardness is higher. The average hardness is 700HV. While the maximum micro-hardness can reach 750HV, this is approximately 3 times than that of the substrates. |
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| Keywords: | Laser re-melting 45 steel Microstructure Micro-hardness |
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