激光表面熔化对Ti?30Nb?4Sn合金晶体织构、显微组织、弹性模量和硬度的影响

骨科植入物的生物相容性与其弹性模量和表面性能密切相关.本研究的目的是阐明冷轧、再结晶和表面激光熔化(LSM)对双相(α″+β)Ti?30Nb?4Sn合金显微组织和力学性能的影响.对冷轧态基体进行X射线衍射织构分析(XRD)显示有[302]α″//ND织构成分,而对再结晶态基体的分析显示有[302]α″//ND和[110]α″//ND织构成分.XRD不能直接检测出β相织构,但是通过考虑α??相和β相之间的位向关系可成功预测出[111]β||ND织构的存在.纳米压痕测试结果表明,冷轧态基体的弹性模量(63 GPa)低于再结晶态基体(74 GPa).根据已有文献和本文研究结果,认为这种差异是由冷变形...

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Published in:	中国有色金属学报（英文版） Vol. 30; no. 2; pp. 392 - 404
Main Authors:	Leonardo FANTON, Nelson Batistade LIMA, Emilio Rayón ENCINAS, Vicente Amigó BORRáS, Conrado Ramos Moreira AFONSO, Jo?o Batista FOGAGNOLO
Format:	Journal Article
Language:	Chinese
Published:	School of Mechanical Engineering, University of Campinas, Rua Mendeleyev, 200, CEP 13083-860, Campinas, SP, Brazil%Instituto de Pesquisas Energéticas e Nucleares, Av. Prof. Lineu Prestes, 2242, CEP 05508-000, S?o Paulo, SP, Brazil%Institut de Tecnologia de Materials, Universitat Politècnica de València,Camino de Vera, s/n, Código Postal 46022, Valencia, Spain%Department of Materials Engineering, Federal University of S?o Carlos, Rodovia Washington Luís, Km 235, CEP 13565-905, S?o Carlos, SP, Brazil 2020
Subjects:	再结晶 recrystallization stiffness-graded material 晶体织构 刚度梯度材料 cold rolling laser surface melting 激光表面熔化 titanium alloy 冷轧 crystallographic texture 钛合金
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