激光离散预处理钢基铬层的功能梯度界面效应
Functionally Graded Interface Effects of Chromium Electrodeposits with a Laser-Discretely Treated Steel Substrate
查看参考文献22篇
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文摘
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为揭示激光离散预处理对镀铬身管的延寿机制,研究了激光离散预处理钢基铬层的功能梯度界面(FGI)效应.结果表明,激光离散预处理使钢基体表层形成周期性梯度结构,初始镀铬层遗传了激光离散预处理基体表层的周期性梯度组织特征.FGI层因激光离散预处理在钢基体/铬层间形成,该FGI层可降低基体/铬层间的硬度梯度,大幅提高铬层的抗腐蚀剥落能力 |
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其他语种文摘
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The functionally graded interface(FGI) effects of a laser-discretely treated steel substrate and Cr electroplate are investigated in order to reveal the mechanism that the service life of the chromium-coated gun tubes is increased by laser-discretely pre-treating. The results show that a periodically graded structure is created on the surface layer of steel substrates due to laser-discretely pre-treating, and the periodically graded microstructural characteristics are inherited by the initially deposited chromium layer. Thus, there is an FGI layer between steel substrates and Cr coatings. The FGI layer can decrease the hardness gradient, and largely improve the corrosive-spallation resistance of Cr electrodeposits |
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来源
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中国激光
,2011,38(3):114-119 【核心库】
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关键词
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激光技术
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铬层
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身管
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激光离散处理
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功能梯度界面
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地址
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1.
北京航空制造工程研究所高能束流加工技术重点实验室, 北京航空制造工程研究所高能束流加工技术重点实验室, 北京, 100024
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中国科学院力学研究所, 北京, 100080
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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0258-7025 |
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学科
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金属学与金属工艺;电子技术、通信技术 |
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基金
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国防科技重点实验室基金
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文献收藏号
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CSCD:4164546
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