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首页> 外文期刊>Philosophical Magazine Letters >Enhanced resistance to weld cracking by strain-induced rapid solidification during linear friction welding
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Enhanced resistance to weld cracking by strain-induced rapid solidification during linear friction welding

机译：线性摩擦焊接过程中因应变引起的快速凝固而增强的抗焊缝开裂性

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摘要

A study of weld cracking resistance during linear friction joining of a difficult-to-weld nickel-based superalloy was performed by Gleeble thermomechanical simulation coupled with an extensive microstructural analysis. It was found that crack-free welds produced by the supposedly solid-state joining technique of linear friction welding is not due to preclusion of grain boundary liquation as has been commonly assumed and reported. Instead, resistance to cracking can be related to a reduction in liquid stability by the imposed compressive strain during welding.View full textDownload full textKeywordsrapid solidification, friction welding, nickel alloys, stress-assisted diffusion, weld crackingRelated var addthis_config = { ui_cobrand: "Taylor & Francis Online", services_compact: "citeulike,netvibes,twitter,technorati,delicious,linkedin,facebook,stumbleupon,digg,google,more", pubid: "ra-4dff56cd6bb1830b" }; Add to shortlist Link Permalink http://dx.doi.org/10.1080/09500839.2010.541164
机译：通过Gleeble热力学模拟和广泛的微观结构分析，对难焊接的镍基高温合金进行线性摩擦连接时的焊接抗裂性进行了研究。已经发现，由所谓的线性摩擦焊接的固态连接技术产生的无裂纹焊缝并不是由于通常假设和报道的排除晶界液化。相反，抗开裂性可能与焊接过程中施加的压缩应变而导致液体稳定性降低有关。查看全文下载全文关键词快速凝固，摩擦焊接，镍合金，应力辅助扩散，焊接裂纹相关var addthis_config = {ui_cobrand：“ Taylor ＆Francis Online”，services_compact：“ citeulike，netvibes，twitter，technorati，delicious，linkedin，facebook，stumbleupon，digg，google，更多”，发布号：“ ra-4dff56cd6bb1830b”};添加到候选列表链接永久链接http://dx.doi.org/10.1080/09500839.2010.541164

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