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不同變形速率、溫度下TC4薄板焊接件屈服強(qiáng)度表征
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先進(jìn)焊接與連接國家重點(diǎn)實(shí)驗(yàn)室開放課題研究基金(AWPT-M12-01)


Yield Strength of TC4 Thin Plate Weldment under Different Deformation Rates and Temperatures
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    摘要:

    為了研究溫度、變形速率對(duì)TC4焊接件的力學(xué)性能影響，分別采用100~800 ℃下變形速率為0.001, 0.1, 1和10 s-1的拉伸試驗(yàn)來表征焊接件的動(dòng)態(tài)力學(xué)性能，并基于Johnson-Cook模型對(duì)相應(yīng)變形速率下的屈服強(qiáng)度進(jìn)行理論計(jì)算，而后比較了計(jì)算值和實(shí)驗(yàn)所測(cè)的數(shù)值，結(jié)果說明可以采用Johnson-Cook模型來表征焊接件的動(dòng)態(tài)力學(xué)性能

    Abstract:

    The effects of temperature and deformation rate on the mechanical properties of TC4 weldment were studied. The dynamic mechanical properties of the weldment were characterized by tension tests at the deformation rates of 0.001, 0.1, 1 and 10 /s. Based on the Johnson-Cook model, the yield strength of TC4 plate was calculated and the experimental data were compared with calculation values. It is concluded that Johnson-Cook model can be used to characterize the change of the yield strength of TC4 weldment under different deformation rates and temperatures

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張 勇,綦秀玲.不同變形速率、溫度下TC4薄板焊接件屈服強(qiáng)度表征[J].稀有金屬材料與工程,2013,42(5):1091~1095.[Zhang Yong, Qi Xiuling. Yield Strength of TC4 Thin Plate Weldment under Different Deformation Rates and Temperatures[J]. Rare Metal Materials and Engineering,2013,42(5):1091~1095.]
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  • 收稿日期:2012-04-15
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