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钛合金搅拌摩擦焊接接头的微观组织分析 被引量:6

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摘要 对4mm厚的TC4钛合金板进行搅拌摩擦焊接,获得良好的焊接接头。截取一块,用光学金相显微镜观察截面的显微组织。焊接过程中搅拌区的温度达到β相变温度以上,由于温度和变形程度不同,搅拌区不同位置的组织有所不同。热机械影响区因为受到热和塑性变形双重作用引起动态再结晶,形成较小的等轴α相。
出处 《航天制造技术》 2006年第5期42-43,53,共3页 Aerospace Manufacturing Technology
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