| Cr12钢中性盐浴渗铬组织与性能研究 |
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| 引用本文： | 李爱农,程丰伟,王秋领,王华昌.Cr12钢中性盐浴渗铬组织与性能研究[J].模具工业,2011,37(4):57-60. |
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| 作者姓名： | 李爱农 程丰伟 王秋领 王华昌 |
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| 作者单位： | 武汉理工大学材料科学与工程学院,湖北武汉,430070 |
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| 基金项目： | 国家自然科学基金资助项目(50675165) |
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| 摘 要： | 通过金相、扫描电子显微镜及其能谱仪分析研究了Cr12经中性盐浴TD渗铬后渗层的显微组织及元素线分布,并进行了硬度、磨损和抗氧化性能测试。试验结果表明:形成的铬的碳化物覆层连续、均匀、致密,与基体结合力强,有很高的硬度,表现出优异的耐磨及抗高温氧化性能,覆层与Cr12钢(900℃油冷+低温回火)基体之间的硬度过渡较为平缓,有利于在工模具中的实际应用。
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| 关 键 词： | Cr12钢 中性盐浴渗铬 碳化物覆层 组织性能 |
Microstructure and properties of Cr12 steel after neutral salt-bath chromizing |
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| LI Ai-nong,CHENG Feng-wei,WANG Qiu-ling,WANG Hua-chang.Microstructure and properties of Cr12 steel after neutral salt-bath chromizing[J].Die & Mould Industry,2011,37(4):57-60. |
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| Authors: | LI Ai-nong CHENG Feng-wei WANG Qiu-ling WANG Hua-chang |
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| Affiliation: | LI Ai-nong,CHENG Feng-wei,WANG Qiu-ling,WANG Hua-chang(School of Materials Science and Engineering,Wuhan University of Technology,Wuhan,Hubei 430070,China) |
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| Abstract: | The microstructure and element linear distribution of Cr12 steel after neutral salt-bath chromizing were investigated by means of optical microscope,SEM and EDS;and the microhardness,wear resistance and oxidation resistance were tested.The results show that the chromic carbide coating is smooth,dense,uniform and well-bonded with Cr12 steel substrate,demonstrating high microhardness,excellent resistance to wear and high temperature oxidation.The microhardness gradient is gentle to some extent between the coa... |
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| Keywords: | Cr12 steel neutral salt-bath chromizing carbide coating microstructure and properties |
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