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基于轮廓法测试惯性摩擦焊接头内部残余应力

刘川, 冯俊, 朱海洋, 李良碧

刘川, 冯俊, 朱海洋, 李良碧. 基于轮廓法测试惯性摩擦焊接头内部残余应力[J]. 焊接学报, 2015, 36(6): 1-4.
引用本文: 刘川, 冯俊, 朱海洋, 李良碧. 基于轮廓法测试惯性摩擦焊接头内部残余应力[J]. 焊接学报, 2015, 36(6): 1-4.
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LIU Chuan, FENG Jun, ZHU Haiyang, LI Liangbi. Internal residual stress measurement of inertia friction welding joints based on contour method[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2015, 36(6): 1-4.
Citation: LIU Chuan, FENG Jun, ZHU Haiyang, LI Liangbi. Internal residual stress measurement of inertia friction welding joints based on contour method[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2015, 36(6): 1-4.
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基于轮廓法测试惯性摩擦焊接头内部残余应力

  • 1.

    江苏科技大学 材料科学与工程学院, 镇江 212003

  • 2.

    江苏科技大学 船舶与海洋工程学院, 镇江 212003

基金项目: 国家自然科学基金资助项目(2015011405);江苏高校优势学科建设工程资助项目(PDAD)

Internal residual stress measurement of inertia friction welding joints based on contour method

  • 1.

    School of Material Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, China

  • 2.

    School of Naval Architecture & Ocean Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, China

摘要

    摘要
  • 摘要: 采用轮廓法测试小尺寸镍基高温合金惯性摩擦焊接头的内部环向应力、中等尺寸惯性摩擦焊接头内部环向和轴向应力;分析惯性摩擦焊接头内部环向和轴向残余应力分布特征. 结果表明,轮廓法能测试小尺寸及窄小焊缝试件的内部残余应力,能反映出窄小焊缝内部的大梯度焊接残余应力全貌;惯性摩擦焊接头的环向应力沿轴向变化剧烈,沿环向分布均匀,沿厚度分布不均匀;焊缝中心位置外表层区域环向应力小于内表层区域环向应力;焊缝中心外表面轴向应力为压应力,而内表面轴向应力为拉应力,且轴向应力沿厚度呈线性变化.
    Abstract: The internal hoop stress within a small nickel-based superalloy inertia friction welding joint and the internal hoop and axial stresses within a middle-size inertia friction welding joint were measured with the contour method and the internal stress distribution characteristics were discussed. The results show that the internal stress within the small specimens and narrow welds can be measured with the contour method and the steep and full internal residual stress distribution can also be obtained with the proposed method. The hoop stress in inertia friction welding joint varies severely along the axial direction and distributes uniformly along the hoop direction, while presents a nonuniform distribution across the thickness. At the weld center line, the hoop stress near the outer surface is larger than that near the inner surface, compressive axial stress presents near the outer surface and tensile axial stress arises near the inner surface. In addition, the axial stress varies linearly along the thickness.
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    • 参考文献(12)
  • [1] Withers P J, Bhadeshia H K D H. Residual stress, part 1-measurement techniques[J]. Materials Science and Technology, 2001, 17(4): 355-365.
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    [8] 杨 军, 楼松年, 严隽民, 等. GH4169高温合金惯性摩擦焊接头晶粒分布特征[J]. 焊接学报, 2001, 22(3): 33-35. Yang Jun, Lou Songnian, Yan Junmin, et al. Grain distribution properties of superalloy GH4169 inertia friction welded joint[J]. Transactions of the China Welding Institution, 2001, 22(3): 33-35.
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    [12] 李敬勇, 邱 硕, 仇晨龙. 惯性摩擦焊接头非对称性分析[J]. 焊接学报, 2014, 35(12): 81-84. Li Jingyong, Qiu Shuo, Qiu Chenlong. Asymmetry of inertia friction welding joint[J], Transactions of the China Welding Institution, 2014, 35(12): 81-84.
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出版历程
  • 收稿日期:  2014-11-24

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