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升温条件下激光冲击强化对工业纯钛拉伸性能和断口形貌的影响

Yue Liu,Jinzhong Lu,Kaiyu Luo,Liujun Wu

Chinese Journal of Lasers（2016）

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Abstract
对激光冲击强化(LSP) TA2工业纯钛拉伸试样在不同温度条件下的断口进行表征和分析,考察了温度对断口特征形貌和拉伸性能的影响.结果表明,在相同温度下,LSP后的试样比未处理试样的拉伸断口颈缩现象明显,且塑性更好.随着温度的逐渐升高,断裂形式从脆性断裂变为混合断裂、最后变为韧性断裂.
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Key words
laser technique,laser shock processing,TA2 CP-Ti,temperature,tensile property,fracture morphology
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