金属学报  1994, Vol. 30 Issue (4): 164-169

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62Sn─36Pb─2AgSMT封装焊点的等温剪切低周疲劳特征

李云卿;唐祥云;马莒生;黄乐

清华大学

ISOTHERMAL SHEAR LOW-CYCLE FATIGUE BEHAVIOUR OF 62Sn-36Pb-2Ag SURFACE MOUNT SOLDER JOINTS

LI Yunqing; TANG Xiangyun; M A Jusheng; HUANG Le(Tsinghua University; Beijing)(Manuscript received 19 July; 1993: in revised form 18 October; 1993)

李云卿;唐祥云;马莒生;黄乐. 62Sn─36Pb─2AgSMT封装焊点的等温剪切低周疲劳特征[J]. 金属学报, 1994, 30(4): 164-169.
, , , . ISOTHERMAL SHEAR LOW-CYCLE FATIGUE BEHAVIOUR OF 62Sn-36Pb-2Ag SURFACE MOUNT SOLDER JOINTS[J]. Acta Metall Sin, 1994, 30(4): 164-169.

摘要 参考文献 相关文章 Metrics 全文: PDF(488 KB)   摘要: 研究了表面封装焊在剪切应力作用下等温低周疲劳特征，得到疲劳寿命与循环应力幅的关系曲线．分析了６２Ｓｎ─３６Ｐｂ─２Ａｇ焊点的低周疲劳失效机理。结果表明：６２Ｓｎ─３６Ｐｂ─２Ａｇ表面封装焊点在剪应力控制等温低周疲劳过程中有明显的循环蠕变行为，焊点的失效是由于疲劳与蠕变的交互作用造成的。在２５℃，低应力水平下，焊点的失效主要受疲劳过程控制，而高应力水平下，焊点的失效主要受蠕变过程控制；１００℃等温低周疲劳的失效机理与室温疲劳相似，其由疲劳机理向蠕变机理转化的应力水平τ_（＋）较室温下为低，但在相对应力水平（τ_＋／τ_ｂ和τ_＋／τ_ｂ＇）相同时，１００℃与室温时疲劳裂纹的扩展速率ｄａ／ｄＮ基本一致。 关键词 ： ６２Ｓｎ─３６Ｐｂ─２Ａｇ,  表面封装,  焊点,  低周疲劳,  循环蠕变,  失效机理     Abstract：The isothermal low-cycle fatigue behaviour of 62Sn-36Pb-2Ag surface mount solder joint under shear stress has been discussed, meanwhile, the curve of shear fatigue life vs cyclic shear stress amplitude has been obtained, and the failure mechanism under different shear stress amplitude at different temperatures is analyzed. The results show that:there are obvious cyclic creep behaviour during constant stress amplitude low-cycle fatigue in 62Sn-36Pb-2Ag surface mount solder joints. The failure of solder joint is due to the interaction of fatigue and creep. At 25℃, under low shear stress amplitude, the failure is controlled mainly by fatigue mechanism, in constrast, under high shear stress amplitude, controlled mainly by creep mechanism:the failure mechanism at 100℃ is similar to that at 25℃ , only the transfer stress τ_(+) from fatigue mechanism to creep mechanism is lower than that at 25℃. Under similar relatative shear stress amplitude (τ_(+)/τ_b and τ_(+)/τ_b＇), the fatigue rack propagation rate da / dN at 100℃ is similar to that at 25℃ .Correspondent: LI Yunqing, lecturer, Department of Materials Science and Engineering, Tsinghua University,Beijing 100084 Key words： surface mount packaging    solder joint    low-cycle fatigue    cyclic creep    failure mechanism 收稿日期: 1994-04-18      基金资助:国家自然科学基金 服务 把本文推荐给朋友 加入引用管理器 E-mail Alert RSS 作者相关文章 李云卿 唐祥云 马莒生 黄乐 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1994/V30/I4/164 1EnkeNF,KilinskiTJ,SchroederSA,LesniakJR．IEEETransComponents,HybridsandManufacturingTechnology,1989;12:4592MeiZJr,MorrisJW．TransASME,JElectronPackaging,1992:114:1043GuoZ,SprecherAF,ConradH．TransASME,JElectronPackaging,1992;114:1124MeiZ,Jr．MorrisJW,ShineMC,SummersTSE．JElectronMater,1991:20:5995李云卿,唐祥云,马莒生．清华大学学报,1993;33(5):496HalesR．Fatigueathightemperature,London:AppliedScieneePublishers,1983:637AttarwalaAI,TienJK,MasadaGY,DodyG．TransASMK,JElectronPackaging,1992;114:109( [1] 周红伟, 高建兵, 沈加明, 赵伟, 白凤梅, 何宜柱. 高温低周疲劳下C-HRA-5奥氏体耐热钢中孪晶界演变[J]. 金属学报, 2022, 58(8): 1013-1023. [2] 郭磊, 高远, 叶福兴, 张馨木. 航空发动机热障涂层的CMAS腐蚀行为与防护方法[J]. 金属学报, 2021, 57(9): 1184-1198. [3] 周红伟, 白凤梅, 杨磊, 陈艳, 方俊飞, 张立强, 衣海龙, 何宜柱. 1100 MPa级高强钢的低周疲劳行为[J]. 金属学报, 2020, 56(7): 937-948. [4] 张哲峰,邵琛玮,王斌,杨浩坤,董福元,刘睿,张振军,张鹏. 孪生诱发塑性钢拉伸与疲劳性能及变形机制[J]. 金属学报, 2020, 56(4): 476-486. [5] 张志杰, 黄明亮. 原位研究Cu/Sn-37Pb/Cu微焊点液-固电迁移行为[J]. 金属学报, 2020, 56(10): 1386-1392. [6] 张哲峰, 刘睿, 张振军, 田艳中, 张鹏. 金属材料疲劳性能预测统一模型探索[J]. 金属学报, 2018, 54(11): 1693-1704. [7] 刘汉青, 何超, 黄志勇, 王清远. TC17合金超高周疲劳裂纹萌生机理[J]. 金属学报, 2017, 53(9): 1047-1054. [8] 赵宁,邓建峰,钟毅,殷录桥. 热迁移下Ni/Sn-xCu/Ni微焊点钎焊界面金属间化合物的演变[J]. 金属学报, 2017, 53(7): 861-868. [9] 张志杰,黄明亮. Cu/Sn-52In/Cu微焊点液-固电迁移行为研究[J]. 金属学报, 2017, 53(5): 592-600. [10] 安金岚,王磊,刘杨,胥国华,赵光普. 长期时效对GH4169合金组织演化及低周疲劳行为的影响*[J]. 金属学报, 2015, 51(7): 835-843. [11] 黄明亮, 张志杰, 冯晓飞, 赵宁. 液-固电迁移Ni/Sn-9Zn/Ni焊点反极性效应研究[J]. 金属学报, 2015, 51(1): 93-99. [12] 车欣, 梁兴奎, 陈丽丽, 陈立佳, 李锋. Al-9.0%Si-4.0%Cu-0.4%Mg(-0.3%Sc)合金的显微组织及其低周疲劳行为*[J]. 金属学报, 2014, 50(9): 1046-1054. [13] 张思倩, 吴伟, 陈丽丽, 车欣, 陈立佳. 热处理对挤压变形Mg-7%Zn-0.6%Zr-0.5%Y合金低周疲劳行为的影响*[J]. 金属学报, 2014, 50(6): 700-706. [14] 郭鹏程, 钱立和, 孟江英, 张福成. 高锰奥氏体TWIP钢的单向拉伸与拉压循环变形行为*[J]. 金属学报, 2014, 50(4): 415-422. [15] 王媛媛, 陈立佳, 王宝森. 温度对625镍基高温合金焊接接头低周疲劳行为的影响[J]. 金属学报, 2014, 50(12): 1485-1490. Viewed Full text Abstract Cited   Shared      Discussed