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氧化物弥散强化材料的搅拌摩擦焊分析

张静, 常永勤, 贺建超, 万发荣

张静, 常永勤, 贺建超, 万发荣. 氧化物弥散强化材料的搅拌摩擦焊分析[J]. 焊接学报, 2015, 36(7): 63-66.
引用本文: 张静, 常永勤, 贺建超, 万发荣. 氧化物弥散强化材料的搅拌摩擦焊分析[J]. 焊接学报, 2015, 36(7): 63-66.
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ZHANG Jing, CHANG Yongqin, HE Jianchao, WAN Farong. Friction stir welding of oxide dispersion strengthened material[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2015, 36(7): 63-66.
Citation: ZHANG Jing, CHANG Yongqin, HE Jianchao, WAN Farong. Friction stir welding of oxide dispersion strengthened material[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2015, 36(7): 63-66.
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氧化物弥散强化材料的搅拌摩擦焊分析

  • 北京科技大学 材料科学与工程学院, 北京 100083

基金项目: 国际热核聚变试验堆(ITER)计划专项资助项目(2011-GB108002);国家自然科学基金资助项目(11175014)

Friction stir welding of oxide dispersion strengthened material

  • School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China

摘要

    摘要
  • 摘要: 为了探索搅拌摩擦焊技术应用于氧化物弥散强化材料的可焊接性及其基本特点,文中对厚度为4 mm的氧化物弥散强化铜合金进行了焊接试验,并对焊接接头的宏观形貌、微观组织、显微维氏硬度进行了分析. 发现焊接接头横截面由搅拌区、热力影响区、热影响区和母材区4部分组成. 前进侧热影响区与热力影响区形成明显的分界线,后退侧则相对模糊. 搅拌区的组织为细小的等轴晶粒,出现了洋葱环和L线,热力影响区晶粒沿一定方向发生形变,热影响区组织粗化. 沿焊缝横截面的显微维氏硬度呈V形分布,其中搅拌区硬度值最低.
    Abstract: The oxide dispersion strengthened (ODS) copper alloy with 4 mm in thickness was joined by friction stir welding (FSW) to investigate the basic characteristics and feasibility of FSW technology of ODS materials. The microstructure and mechanical properties of ODS-Cu joint were studied. The microstructures of welded joint consist of four parts: weld nugget zone(WNZ),thermo-mechanically affected zone(TMAZ), heat affected zone(HAZ) and base material(BM). The boundary of the TMAZ and HAZ in advanced side is clear, while it is blurred on the retreating side. The WNZ is composed of fine equiaxed recrystallized grains and onion rings structures and "L" line is observed. Deformed grain is distributed along a certain direction in TMAZ, while the grain coarsens slightly in HAZ. The micro-hardness along the weld cross-section shows V-shaped distribution and the hardness of WNZ is the lowest.
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    • 参考文献(13)
  • [1] Park J W, Jang J S, Kim T K, et al. Formation of nanostructures in Ni-22Cr-11Fe-1X(X=Y2O3,TiO2) alloys by high-energy ball-milling[J]. Journal of Nanoscience and Nanotechnology, 2011, 11(7): 6213-6218.
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    [6] 傅志红, 贺地求, 周鹏展, 等. 7A52铝合金搅拌摩擦焊焊缝的组织分析[J]. 焊接学报, 2006, 27(5): 65-68. Fu Zhihong, He Diqiu, Zhou Pengzhan, et al. Analysis of the organization for friction stir welding of 7A52 aluminum alloy[J]. Transactions of the China Welding Institution, 2006, 27(5): 65-68.
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    [9] Liu P, Shi Q Y, Wang W, et al. Microstructure and XRD analysis of FSW joints for copper T2/aluminium 5A06 dissimilar materials[J]. Materials Letters, 2008, 62(25): 4106-4108.
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    [11] 王希靖, 达朝炳, 李 晶, 等. 搅拌摩擦焊缝中的洋葱环形成分析[J]. 中国有色金属学报, 2006, 16(10): 1672-1677. Wang Xijing, Da Chaobing, Li Jing, et al. Analysis of formation of onion rings in friction stir welding[J]. The Chinese Journal of Nonferrous Metals, 2006, 16(10): 1672-1677.
    [12] Liu H J, Chen Y C, Feng J C. Effect of zigzag line on the mechanical properties of friction stir welded joints of an Al-Cu alloy[J]. Scripta Materialia, 2006, 55(3): 231-234.
    [13] Rajesh S R, Bang H S, Chang W S, et al. Numerical determination of residual stress in friction stir weld using 3D-analytical model of stir zone[J]. Journal of Materials Processing Technology, 2007, 187-188: 224-226.
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出版历程
  • 收稿日期:  2013-12-10

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