| 45钢表面铬、硼、碳三元铸渗层的组织和硬度 |
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| 引用本文： | 孟德权,高崭,张伟强.45钢表面铬、硼、碳三元铸渗层的组织和硬度[J].机械工程材料,2009(10). |
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| 作者姓名： | 孟德权 高崭 张伟强 |
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| 作者单位： | 中国重型汽车集团动力有限公司济南铸造中心;辽宁工程技术大学材料科学与工程学院;沈阳理工大学材料科学与工程学院; |
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| 摘 要： | 以硼铁、石墨、高碳铬铁粉为原料,采用涂料法在45钢铸件表面制备硼、铬和碳三元铸渗层,研究了不同的涂料配比对表面铸渗层组织和硬度的影响。结果表明:表面铸渗层主要由马氏体、Cr23C6、Fe-Cr、Fe23(C,B)6和Fe3C等相组成,使铸件表面的硬度提高了近3倍;涂料的最佳配比为w(Cr)∶w(B)∶w(C)=80∶10∶10。
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| 关 键 词： | 铸渗 涂料 45钢 硬度 |
Microstructure and Hardness of Cr,B,C Ternary Cast-infiltrated on 45 Steel Surface |
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| MENG De-quan,GAO Zhan,ZHANG Wei-qiang.Microstructure and Hardness of Cr,B,C Ternary Cast-infiltrated on 45 Steel Surface[J].Materials For Mechanical Engineering,2009(10). |
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| Authors: | MENG De-quan GAO Zhan ZHANG Wei-qiang |
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| Affiliation: | MENG De-quan1,GAO Zhan2,ZHANG Wei-qiang3(1.Ji'nan Power Co.,Ltd.Casting Center China National Heavy Duty Truck Corp,Ji'nan 250001,China,2.Department of Mater.Sci & Eng.,Liaoning Technical University,Fuxin 123000,3.Department of Mater.Sci & Eng.,Shenyang Ligong University,Shenyang 110168,China) |
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| Abstract: | Coating method was applied in cast-infiltration to prepare a ternary layer containing boron,chromium and carbon on the surface of 45 steel cast using ferroboron,graphite and high carbon ferrochrome as raw materials.The influence of different coating ratios on the microstructure and hardness of the cast-infiltrated layers was studied.The results show that the cast-infiltrated layer was mainly constituted by martensite,Cr23C6,Fe-Cr,Fe23(C,B)6 and Fe3C,which were responsible for increasing nearly three times o... |
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| Keywords: | casting-infiltration coating 45 steel hardness |
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