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首页> 外文会议>World conference on titanium >Influence of Microstructure on Hot Plasticity of Ti-6Al-4V and Ti-5Al-5Mo-5V-1Cr-1Fe Titanium Alloys
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Influence of Microstructure on Hot Plasticity of Ti-6Al-4V and Ti-5Al-5Mo-5V-1Cr-1Fe Titanium Alloys

机译：微观结构对Ti-6Al-4V和Ti-5Al-5MO-5V-1CR-1Fe钛合金热塑性的影响

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In the paper results of the studies on influence the microstructure of titanium alloys Ti-6Al-4V and Ti-6Al-5Mo-5V-1Cr-1Fe on their hot plasticity have been summarized. Four types of Ti-6Al-4V microstructure - coarse-grained lamellar, fine-grained lamellar, bi-modal (duplex) and globular - and two types of Ti-6Al-5Mo-5V-1Cr-1Fe microstructure - coarse and fine-grained lamellar - were examined. Tests were carried out on torsional plastometer at 900-1050°C for Ti-6Al-4V and at 800-900°C for Ti-6Al-5Mo-5V-1Cr-1Fe alloy, at the strain rate of 0.04, 0.4 and 4.0 s~(-1). Influence of microstructure on maximum plastic flow stress σ_(pm) and corresponding strain ε_m was determined. It was found that in the case of Ti-6Al-4V fine-grained lamellar microstructure and for Ti-6Al-5Mo-5V-1Cr-1Fe alloy coarse-grained lamellar microstructure provides highest plasticity in the range of deformation temperature and strain rates applied. Changes in alloys microstructure caused by hot plastic deformation were examined using LM and TEM techniques.
机译：在对影响研究的论文结果对他们的热可塑性钛合金的Ti-6AL-4V和Ti-6AL-5Mo-5V-林前-1FE的微观结构进行了总结。四种类型的Ti-6AL-4V微结构 - 粗粒层状，细粒度层状，双峰（双工）和球状 - 和两种类型的Ti-6AL-5Mo-5V-林前-1FE微观结构 - 粗和细晶板层 - 进行了检查。试验是在900-1050℃下在扭转塑性计进行的Ti-6AL-4V和在800-900℃下的Ti-6AL-5Mo-5V-林前-1FE合金，以0.04，0.4和4.0的应变速率S〜（-1）。测定上最大塑性流动应力σ_（PM）和对应的应变ε_m微观结构的影响。据发现，在钛6AL-4V细粒度片状组织的Ti-6AL-5Mo-5V-林前-1FE的和的情况下合金粗粒片状组织中变形温度的范围内提供最高的可塑性和施加的应变率。使用LM和TEM技术进行了检查在合金微结构所造成的热塑性变形的变化。

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