期刊文献+

GH783/GH4169环件异种金属焊接热-力过程的有限元分析 被引量:2

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摘要 针对低膨胀高温合金GH783与普通GH4169合金的环件异种金属氩弧焊,建立了热-力过程有限元数值分析模型。通过模拟揭示了GH783/GH4169异种金属焊接过程的应力-应变演变特点,预测了环件焊后的残余应力和变形分布。结果表明,合金的线膨胀系数差异造成了焊接应力-应变的非对称分布,线膨胀系数大的GH4169侧的焊接应变、应力以及最终的焊接变形均大于低膨胀GH783合金侧。模拟预测的环件轴向收缩量与实测结果吻合。
出处 《焊接》 北大核心 2011年第12期22-26,共5页 Welding & Joining
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参考文献6

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