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TA15线性摩擦焊接头高周疲劳性能分析

张传臣,张田仓,刘颖

张传臣,张田仓,刘颖. TA15线性摩擦焊接头高周疲劳性能分析[J]. 焊接学报, 2018, 39(5): 105-108. DOI: 10.12073/j.hjxb.2018390133
引用本文: 张传臣,张田仓,刘颖. TA15线性摩擦焊接头高周疲劳性能分析[J]. 焊接学报, 2018, 39(5): 105-108. DOI: 10.12073/j.hjxb.2018390133
ZHANG Chuanchen, ZHANG Tiancang, LIU Ying. Cycle fatigue properties of TA15 titanium alloy linear friction welded joint[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2018, 39(5): 105-108. DOI: 10.12073/j.hjxb.2018390133
Citation: ZHANG Chuanchen, ZHANG Tiancang, LIU Ying. Cycle fatigue properties of TA15 titanium alloy linear friction welded joint[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2018, 39(5): 105-108. DOI: 10.12073/j.hjxb.2018390133

TA15线性摩擦焊接头高周疲劳性能分析

Cycle fatigue properties of TA15 titanium alloy linear friction welded joint

  • 摘要: 在相同热处理制度下,开展了TA15钛合金母材与TA15线性摩擦焊接头高周疲劳性能试验,并对疲劳断口进行扫描电镜分析. 结果表明,从S-N曲线低应力区到高应力区,焊缝针状组织的疲劳强度高于母材双态组织,随着应力的增大,两种组织的疲劳强度差异逐渐缩小;接头针状组织的疲劳极限(463 MPa)高于母材双态组织(423 MPa). 断口分析结果表明,TA15母材的疲劳断口相对较平,扩展区二次裂纹较少,而线性摩擦焊接头中存在较多的二次裂纹,降低了裂纹扩展速度,说明针状组织的疲劳性能优于双态组织.
    Abstract: The high cycle fatigue properties and fracture features of TA15 titanium alloy and Linear Friction Welded (LFW) joint were investigated. The results show that fatigue strength of bi-model structure of TA15 base metal is lower than acicular structure of welded joint,and with the stress increasing,the fatigue property gap between welded joint microstructure and base metal microstructure gradually decreasing. The fatigue limit of LFW joint acicular structure (463 MPa) is higher than that of base metal bi-modal structure (423 MPa) in the high cycle. Fracture analysis results show that the fracture of TA15 base metal is smooth and second cracks are less than those of welded joint in extended area. Second cracks reduced the crack growth rate, which shows that the fatigue property of acicular structure is superior to that of bi-modal structure.
  • [1] 曹京霞, 黄 旭, 李臻熙. TA15钛合金的高周疲劳性能和断裂特征[J]. 材料工程, 2004(3): 28-30.Cao Jingxia, Huang Xu, Li Zhenxi. High cycle fatigue properties and fracture features of TA15 titanium alloy[J]. Journal of Materlals Engineering, 2004(3): 28-30.[2] 高灵清, 朱金华. TA5钛合金焊板的疲劳断口分析[J]. 金属热处理, 2006, 31(8): 91-92.Gao Lingqing, Zhu Jinhua. Analysis on fatigue fractures of TA5 alloy welded plates[J]. Heat Treatment of Metals, 2006, 31(8): 91-92.[3] Bhamji I, Preuss M, Threadgill P L. Solid state joining of metals by linear friction welding: a literature review [J]. Materials Science and Technology, 2011, 27(1): 2-12.[4] Wanjara P, Jahazi M. Linear friction welding of Ti-6Al-4V: processing, microstructure, and mechanical-property inter-relationships[J]. Metallurgical and Materials Transactions, 2005, 36A(8): 2149-2164.[5] 张庆玲, 李兴无. TA15 钛合金两类组织对疲劳性能和断裂韧度的影响[J]. 材料工程, 2007(7): 3-5.Zhang Qingling, Li Xingwu. Effect of structure on fatigue properties and fracture toughness for TA15 titanium alloy[J]. Journal of Materials Engineering, 2007(7): 3-5.[6] Conde A, Zubiri F, Damborenea J. Cladding of Ni2Cr2Bzsi coatings with a nigh hower diode laser[J]. Materials Science and Engineering A, 2002, 33(4): 233-238.[7] EvansW J. Optimising mechanical properties in alpha+beta titanium alloys[J]. Material Science and Engineering, 1998, A243: 89-96.[8] Brun M Ya, Shakhanova G V. Titanium alloy structure and parameters defining its diversity[J]. Titanium Scientific Technical Journal, 1993, 1(3): 24-29.[9] 房卫萍, 陈 沦, 史耀武, 等. 损伤容限钛合金的研究进展及应用现状[J]. 材料工程, 2010(9): 95-98.Fang Weiping, Chen Lun, Shi Yaowu,et al. Research development and application of damage tolerance titanium alloy[J]. Journal of Materials Engineering, 2010(9): 95-98.[10] 周为富, 赵振华, 陈 伟. 钛合金高周疲劳特性的影响因素分析[J]. 现代机械, 2009(3): 90-93.Zhou Weifu, Zhao Zhenhua, Chen Wei. Effect factors analysis of high cycle fatigue performance of titanium alloy[J]. Modern Machinery, 2009(3): 90-93.[11] 赖运金, 张丰收, 杜予晅, 等. 热处理对TA15钛合金高周疲劳性能的影响[J]. 中国有色金属学报, 2010, 20(S1): 62-65.Lai Yunjin, Zhang Fengshou, Du Yuxuan,et al. Effects of heat treatment on high cycle fatigue strength of TA15 alloy[J]. The Chinese Journal of Nonferrous Metals, 2010, 20(S1): 62-65.[12] Schmitz V, Chakhlov S, Muller W,et al. Experiences with synthetic aperture focusing technique in the field[J]. Ultrasonic, 2000, 37: 731-738.
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出版历程
  • 收稿日期:  2016-11-22

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