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5A06铝合金包铝层与基体X-ray残余应力检测中的衍射峰峰位差异分析

霍书林, 郑广花, 朱小溪, 荣建, 杨耀东, 刘战捷, 左洋

霍书林, 郑广花, 朱小溪, 荣建, 杨耀东, 刘战捷, 左洋. 5A06铝合金包铝层与基体X-ray残余应力检测中的衍射峰峰位差异分析[J]. 无损检测, 2018, 40(4): 26-29. DOI: 10.11973/wsjc201804005
引用本文: 霍书林, 郑广花, 朱小溪, 荣建, 杨耀东, 刘战捷, 左洋. 5A06铝合金包铝层与基体X-ray残余应力检测中的衍射峰峰位差异分析[J]. 无损检测, 2018, 40(4): 26-29. DOI: 10.11973/wsjc201804005
HUO Shulin, ZHENG Guanghua, ZHU Xiaoxi, RONG Jian, YANG Yaodong, LIU Zhanjie, ZUO Yang. The Analysis of Diffraction Peak Differences during X-ray Residual Stress Test of the Clad Aluminum Layer and Its Matrix for 5A06 Aluminum Alloy[J]. Nondestructive Testing, 2018, 40(4): 26-29. DOI: 10.11973/wsjc201804005
Citation: HUO Shulin, ZHENG Guanghua, ZHU Xiaoxi, RONG Jian, YANG Yaodong, LIU Zhanjie, ZUO Yang. The Analysis of Diffraction Peak Differences during X-ray Residual Stress Test of the Clad Aluminum Layer and Its Matrix for 5A06 Aluminum Alloy[J]. Nondestructive Testing, 2018, 40(4): 26-29. DOI: 10.11973/wsjc201804005

5A06铝合金包铝层与基体X-ray残余应力检测中的衍射峰峰位差异分析

详细信息
    作者简介:

    霍书林(1971-),男,助理工程师,主要从事残余应力检测工作

    通讯作者:

    霍书林, E-mail:1286568478@qq.com

  • 中图分类号: TG115.28

The Analysis of Diffraction Peak Differences during X-ray Residual Stress Test of the Clad Aluminum Layer and Its Matrix for 5A06 Aluminum Alloy

  • 摘要: 在对5A06铝合金板进行X-ray残余应力检测时发现,其表面包铝层会对衍射图样造成干扰,尤其是衍射峰峰位会发生较大偏移。为了获得独立的包铝层与基体的衍射峰峰位,选取表面覆有包铝层且厚度大于试验用Co靶Kα射线透射深度的5A06铝合金板,与去除包铝层后的5A06铝合金板作为试验对象,并以纯铝板作为参考,进行了三者的衍射峰峰位检测试验。试验结果表明,包铝层与基体5A06铝合金衍射峰峰位所对应探测器通道数的差值约为90,而与纯铝相同。由此结果,从布拉格衍射定律入手分析了残余应力、干涉级数、设备操作因素与衍射峰峰位偏移量的关系;以晶胞为衍射单元,列举可发生衍射的晶面,并给出衍射晶面指数变化与衍射峰峰位偏移量的关系。通过分析,确定晶格常数差异是引起两者衍射峰峰位差异的原因。
    Abstract: During the X-ray residual stress detection of 5A06 aluminum alloy plate, it was found that the aluminum layer of its surface would interfere with the diffraction pattern, especially the diffraction peak position. In order to obtain independent package aluminum layer and substrate diffraction peak position, this article firstly selected package aluminum with its layer thickness being greater than the ray transmission depth of 5A06 aluminum alloy plate, and then removed the package aluminum layer of 5A06 aluminum alloy as experimental object, and pure aluminum sheet for reference. By doing so, an experimental test on diffraction peak position was carried out by the above-mentioned three. The experimental results showed that the difference of the number of detector channels was about 90, which was the same as that of pure aluminum. From the result, the author analyzed the relationship between residual stress, interference series, equipment operation factors and the diffraction peak position deviation based on Bragg diffraction law. In this paper, the crystal surface of diffraction is enumerated, and the relation between the diffractive crystal surface exponent and the diffraction peak deviation is given. By analysis, the cause of the difference between the two diffraction peaks was due to the difference of lattice constants.
  • [1] 杨超, 王继杰, 韩培培, 等. 包铝层对7B04-O铝合金薄板搅拌摩擦搭接性能影响[J].机械工程学报,2015,51(22):54-58.
    [2] 李志辉, 熊柏青, 张永安, 等. 基于固溶体晶格常数测定的7000系铝合金淬火敏感性机理探讨[C]//2011-中国有色金属学会第十四届材料科学与合金加工学术年会.三亚:中国有色金属学会,2011.
    [3] 潘峰,王英华,陈超.X射线衍射技术[M].北京:化学工业出版社,2016:111,114.
    [4] 周令德. 5A06铝合金挤压制品退火过程中粗晶环形成机理探讨[J].铝加工, 2016(1):30-36.
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出版历程
  • 收稿日期:  2017-09-05
  • 刊出日期:  2018-04-09

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