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首页> 外文期刊>Archives of Metallurgy and Materials >PRIMARY CREEP BEHAVIOUR OF TWO-PHASE TITANIUM ALLOY WITH VARIOUS MICROSTRUCTURE
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PRIMARY CREEP BEHAVIOUR OF TWO-PHASE TITANIUM ALLOY WITH VARIOUS MICROSTRUCTURE

机译：两相钛合金具有各种微观结构的初级蠕变行为

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摘要

Creep and fatigue properties of two-phase titanium alloys show strong dependence on microstructure, especially morphology of the alpha and beta phases which can be controlled to certain extent by proper selection of hot working and heat treatment conditions. In the paper the creep behaviour of Ti-6Al-2Mo-2Cr alloy (VT3-1) at elevated temperature was modelled. Finite element analyses of primary creep stage were carried out taking into account some microstructural features of the two-phase alloy that were included in the physical model and different properties of alpha and beta phases. In order to verify results of calculations distinct types of microstructure were developed in the alloy by heat treatment and creep tests were carried out at elevated temperature (450 degrees C) at various stress levels. Based on the FEM simulations the effect of changes of some microstructure features on primary creep strain development was estimated.
机译：Creep and fatigue properties of two-phase titanium alloys show strong dependence on microstructure, especially morphology of the alpha and beta phases which can be controlled to certain extent by proper selection of hot working and heat treatment conditions. 在纸张中，模拟了升高温度下Ti-6AL-2MO-2CR合金（VT3-1）的蠕变行为。 考虑到物理模型和α和β相的不同性质中包括的两相合金的一些微观结构特征进行初级蠕变阶段的有限元分析。 为了验证计算结果，通过热处理在合金中在合金中开发了不同类型的微观结构，并且在各种应力水平下在升高的温度（450℃）下进行蠕变试验。 基于有限元素模拟，估计了一些微观结构特征变化对初级蠕变应变发育的影响。

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