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首页> 外文会议>日本金属学会春期大会 >(J18-5009)Mechanical properties and deformation mechanisms of fine-grained and ultrafinegrained Ti-6Al-4V with equiaxed and bimodal microstructures
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(J18-5009)Mechanical properties and deformation mechanisms of fine-grained and ultrafinegrained Ti-6Al-4V with equiaxed and bimodal microstructures

机译：（J18-5009）具有等式和双模微结构的细粒细胞和超细凝聚Ti-6Al-4V的机械性能和变形机制

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摘要

Ti-6Al-4V is one of the most popular α+β titanium alloys, which has been widely used for structuralapplication due to its high strength to weigh ratio. Depending on the high-temperature thermomechanicalprocessing parameters, various microstructures, i.e., alpha lamellar, martensite, bimodal and equiaxedmicrostructures, can be obtained in Ti-6Al-4V. Compared with lamellar/martensite microstructures, equiaxedand bimodal microstructures show better balances between strength and ductility, which makes them moreattractive in applications. In this study, the effect of grain refinement on the mechanical properties anddeformation mechanism of equiaxed and bimodal Ti-6Al-4V was systematically investigated. The underlyingmechanism for superior balance of strength and uniform elongation in the ultrafine-grained (UFG) bimodalmicrostructure is also discussed.
机译：TI-6AL-4V是最受欢迎的α+β钛合金之一，由于其高强度为称重比而广泛用于结构副本。根据高温热机械处理参数，在Ti-6Al-4V中可以获得各种微结构，即α层状，马氏体，双峰和等态和平模拟。与层状/马氏体微观结构相比，Equiaxedand Bimodal微观结构在强度和延展性之间显示出更好的平衡，这使得它们在应用中的蒙羞。在该研究中，系统地研究了晶粒细化对等轴和双峰Ti-6Al-4V的机械性能和Deformation机制的影响。还讨论了超细粒子（UFG）双峰型结构中优异的强度和均匀伸长伸长率的基础机制。

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