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2219铝合金搅拌摩擦焊接头裂纹尖端张开位移(CTOD)试验研究

杜岩峰, 田志杰, 王一, 张彦华

杜岩峰, 田志杰, 王一, 张彦华. 2219铝合金搅拌摩擦焊接头裂纹尖端张开位移(CTOD)试验研究[J]. 北京工业大学学报, 2011, 37(9): 1287-1291.
引用本文: 杜岩峰, 田志杰, 王一, 张彦华. 2219铝合金搅拌摩擦焊接头裂纹尖端张开位移(CTOD)试验研究[J]. 北京工业大学学报, 2011, 37(9): 1287-1291.
DU Yan-feng, TIAN Zhi-jie, WANG Yi, ZHANG Yan-hua. Ctod of 2219 Aluminum Alloy Friction Stir Welded Joints[J]. Journal of Beijing University of Technology, 2011, 37(9): 1287-1291.
Citation: DU Yan-feng, TIAN Zhi-jie, WANG Yi, ZHANG Yan-hua. Ctod of 2219 Aluminum Alloy Friction Stir Welded Joints[J]. Journal of Beijing University of Technology, 2011, 37(9): 1287-1291.

2219铝合金搅拌摩擦焊接头裂纹尖端张开位移(CTOD)试验研究

基金项目: 

国防基础科研项目(B0320060553).

详细信息
    作者简介:

    杜岩峰(1977—),男,山东莱州人,高级工程师.

  • 中图分类号: TG407;TG453

Ctod of 2219 Aluminum Alloy Friction Stir Welded Joints

  • 摘要: 采用裂纹尖端张开位移(crack tip opening displacement,CTOD)试验研究了2219铝合金搅拌摩擦焊(friction stir welding,FSW)接头各区域的断裂性能,分析了搅拌摩擦焊接头组织结构对接头断裂性能的影响.研究结果表明,2219铝合金搅拌摩擦焊接头的断裂呈韧性,但接头各区域韧性分布呈现明显的不均匀性,焊核区断裂韧性最好,热机影响区和热影响区次之,但均高于母材的断裂韧性.
    Abstract: Fracture property of different regions of 2219 aluminum alloy friction stir welds was studied in terms of crack tip opening dispacement (CTOD).Three-point bending specimens were used to measure the fracture toughness of various regions of 2219 aluminum alloy friction stir welds.CTOD values were calculated according to p-s curves obtained.Results show that the fracture of 2219 aluminum alloy friction stir weld is ductile and the distribution of fracture toughness is heterogeneous;the fracture toughness of weld nugget is the best following thermal-mechanical affected zone and heat affected zone,and base material is the weakest.
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出版历程
  • 收稿日期:  2011-03-26
  • 网络出版日期:  2022-11-18

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