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热氢处理对Ti600钛合金组织和性能的影响
发布人：上海艾荔艾合金股份有限公司www.shailiai.cn
更新时间：2016-01-06
针对近α型Ti600钛合金热加工抗力大、变形困难等问题，通过对实验样品分别进行5种不同氢含量的置氢处理和真空退火除氢，研究热氢处理过程中Ti600钛合金的组织结构演变和高温力学特性，探讨热氢处理对钛合金组织和高温力学行为等热加工工艺塑性的影响规律。
热氢处理对Ti600钛合金组织和性能的影响Influence of thermo-hydrogenation treatment on microstructure and properties of Ti600 titanium alloy
针对近α型Ti600钛合金热加工抗力大、变形困难等问题，通过对实验样品分别进行5种不同氢含量的置氢处理和真空退火除氢，研究热氢处理过程中Ti600钛合金的组织结构演变和高温力学特性，探讨热氢处理对钛合金组织和高温力学行为等热加工工艺塑性的影响规律。研究表明，对于Ti600钛合金，热氢处理后合金出现不同程度的组织细化，置氢量在0.1%~0.5%范围内，热氢处理可有效提高Ti600近α型合金的热加工工艺塑性。
Aiming at the problems such as large deformation resistance and difficulty in deforming during hot working of high-temperature α alloy Ti600, all specimens were handled hydrogen treatment respectively by five different hydrogen content (mass fraction) from 0.1% to 0.5%, and dehydrogenated by vacuum annealing. The microstructure evolution and tensile properties of Ti600 alloy at thermal temperatures were studied. The effects of thermo-hydrogenation treatment on the microstructure, grain size, as well as high temperature mechanical, heat processing plasticity and the variations regularity were investigated. The result shows that the microstructures of Ti600 alloy are refined to some degree. The thermal plasticity of Ti600 alloy is improved obviously with hydrogen increasing from 0.1% to 0.5%.
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