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中高温条件下激光冲击处理Ti-6Al-4V表面完整性变化

侯丽华, 任旭东, 周王凡, 戴文杰, 徐士东, 黄晶晶

侯丽华, 任旭东, 周王凡, 戴文杰, 徐士东, 黄晶晶. 中高温条件下激光冲击处理Ti-6Al-4V表面完整性变化[J]. 激光技术, 2016, 40(2): 288-291. DOI: 10.7510/jgjs.issn.1001-3806.2016.02.029
引用本文: 侯丽华, 任旭东, 周王凡, 戴文杰, 徐士东, 黄晶晶. 中高温条件下激光冲击处理Ti-6Al-4V表面完整性变化[J]. 激光技术, 2016, 40(2): 288-291. DOI: 10.7510/jgjs.issn.1001-3806.2016.02.029
HOU Lihua, REN Xudong, ZHOU Wangfan, DAI Wenjie, XU Shidong, HUANG Jingjing. Change of surface integrity of Ti-6Al-4V titanium alloy by laser shock processing at middle and high temperatures[J]. LASER TECHNOLOGY, 2016, 40(2): 288-291. DOI: 10.7510/jgjs.issn.1001-3806.2016.02.029
Citation: HOU Lihua, REN Xudong, ZHOU Wangfan, DAI Wenjie, XU Shidong, HUANG Jingjing. Change of surface integrity of Ti-6Al-4V titanium alloy by laser shock processing at middle and high temperatures[J]. LASER TECHNOLOGY, 2016, 40(2): 288-291. DOI: 10.7510/jgjs.issn.1001-3806.2016.02.029

中高温条件下激光冲击处理Ti-6Al-4V表面完整性变化

基金项目: 

国家自然科学基金资助项目(51275556)

详细信息
    作者简介:

    侯丽华(1988-),女,硕士研究生,现主要从事机械制造及其自动化专业的研究。

    通讯作者:

    任旭东,E-mail:renxd@mail.ujs.edu.cn

  • 中图分类号: TG156.99

Change of surface integrity of Ti-6Al-4V titanium alloy by laser shock processing at middle and high temperatures

  • 摘要: 为了研究中高温条件下激光冲击处理对Ti-6Al-4V钛合金的表面完整性的影响,采用高功率、短脉冲Nd:YAG激光器对Ti-6Al-4V钛合金表面进行激光冲击,并将冲击后的钛合金试样分别置于400℃,500℃,550℃和600℃的温度下进行保温处理。从表面形貌、表面粗糙度、表面残余应力等方面分析了中高温条件下激光冲击处理对Ti-6Al-4V钛合金的表面完整性的影响。结果表明,激光冲击处理增大了Ti-6Al-4V钛合金的表面粗糙度,且热处理温度越高,Ti-6Al-4V钛合金的表面粗糙度越大;激光冲击处理显著提高了Ti-6Al-4V钛合金材料的表面残余压应力,随着温度的升高,残余压应力值降低。研究结果对了解和掌握Ti-6Al-4V钛合金的使用性能是有帮助的。
    Abstract: In order to study effect of laser shock processing (LSP) on surface integrity of Ti-6Al-4V titanium alloy at middle and high temperatures, a high power short pulse Nd:YAG laser was used to shock the surface of Ti-6Al-4V titanium alloy. And then, the specimens after LSP were held at 400℃, 500℃, 550℃ and 600℃ respectively for one hour. The influence of LSP on surface integrity of Ti-6Al-4V titanium alloy at middle and high temperatures were analyzed from surface morphology, surface roughness and surface residual stress. The results indicate that LSP increases the surface roughness of Ti-6Al-4V titanium alloy. The surface roughness increases with the increase of heat treatment temperature. The surface residual stress of Ti-6Al-4V titanium alloy increases obviously after LSP. The higher the temperature, the smaller the surface residual stress is. The research results are helpful for understanding the performance of Ti-6Al-4V titanium alloy.
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    其他类型引用(9)

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  • 被引次数: 21
出版历程
  • 收稿日期:  2015-01-21
  • 修回日期:  2015-02-14
  • 发布日期:  2016-03-24

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