综述近年来国内外搅拌摩擦焊塑性流动可视化技术的研究现状,分析各种方法的基本原理及优缺点.研究现状表明:异种材料金相组织显示法可以观察到焊缝接头宏观流动,而对搅拌摩擦焊塑性流动的细节无法获取;彩泥法颜色鲜明,易于观察,但其是非晶体材料,故只能在一定程度上模拟搅拌摩擦焊的塑性流动状况;标识材料示踪法是搅拌摩擦焊材料塑性流动可视化工作的主要手段,其选用原则、焊接过程及焊后采用的可视化手段仍需进一步深入探讨;数值模拟是一种高效、低成本的研究方法,其具备再现焊接过程的能力,模拟过程的边界值、搅拌头的描述等方面需要进一步深入探讨.
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