| 30CrMnSi镀铬后激光表面合金化 |
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| 引用本文： | 姜伟,戚佳睿,孙海霞.30CrMnSi镀铬后激光表面合金化[J].表面技术,2008,37(4):29-30. |
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| 作者姓名： | 姜伟 戚佳睿 孙海霞 |
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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;海军航空工程学院青岛分院,山东,青岛,266041;海军航空工程学院青岛分院,山东,青岛,266041 |
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| 摘 要： | 为研究激光表面合金化工艺对镀铬后30CrMnSi组织与硬度的影响,以CO2激光器为热源,采用正交试验法,对其表面进行单道扫描,获得了金相组织和显微硬度均优于基体的合金化层.研究结果表明:激光合金化层晶粒显著细化,平均硬度明显高于基体硬度.激光功率500W,扫描速度10mm/s,保护气体流量10L/min时,合金化层组织细小均匀致密,最高硬度达829HV,约是基体硬度的2.6倍.
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| 关 键 词： | 激光表面合金化 30CrMnSi 工艺参数 金相组织 显微硬度 镀铬 |
| 收稿时间： | 2008/2/22 0:00:00 |
| 修稿时间： | 2008/8/10 0:00:00 |
Laser Surface Alloying on 30CrMnSi Electroplated with Cr |
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| JIANG Wei,QI Jia-rui and SUN Hai-xia.Laser Surface Alloying on 30CrMnSi Electroplated with Cr[J].Surface Technology,2008,37(4):29-30. |
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| Authors: | JIANG Wei QI Jia-rui and SUN Hai-xia |
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| Affiliation: | Aviation Department of Mechanical Engineering, Qingdao Branch, Naval Aeronautical Engineering Academy, Qingda0 266041, China,Aviation Department of Mechanical Engineering, Qingdao Branch, Naval Aeronautical Engineering Academy, Qingda0 266041, China and Aviation Department of Mechanical Engineering, Qingdao Branch, Naval Aeronautical Engineering Academy, Qingda0 266041, China |
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| Abstract: | For studying the impact of microstructure and micro-hardness of 30CrMnSi electroplated with Cr by laser surface alloying, using C02 laser as heat source and orthogonal test, the alloying layers by single-channel scanning were attained whose microstructure and micro-hardness were better than the substrates: The results indicate that: the laser alloying layers microstructure is refined remarkably, and the average micro-hardness is higher than the substrates''obviously. When laser power is 500W, scanning speed is lOmm/s and the protection of gas flow is lOL/min, the alloying layer has small dense uniform and the highest micro-hardness of 829HV is about 2. 6 times in contrast of the substrate''s. |
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| Keywords: | Laser surface alloying 30CrMnSi Parameters Microstructure Micro-hardness Chrome plating |
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