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    不同条件热处理后Ti-15-3钛合金的再结晶织构

    Recrystallization Texture of Ti-15-3 Alloy with Different Heat Treatments

    • 摘要: 利用三维取向分布函数(ODF)并结合光学显微镜分析了经不同热处理后Ti-15-3钛合金的再结晶织构和显微组织.结果表明:对该合金固溶冷轧板在固溶温度下进行再结晶退火,当在空气炉中加热时,再结晶过程中形成γ纤维织构,并且随着晶粒的长大,γ纤维织构更加明显,此外亦形成了114纤维织构;在加热速率较快的盐浴炉中加热时,再结晶进程加快,γ纤维织构形成于再结晶晶粒的正常长大过程中;在空气炉中分级加热再结晶后,形成以高斯组分为主的散乱强织构.

       

      Abstract: The recrystallization texture and microstructure of Ti-15-3 alloy with different heat treatments were investigated by means of orientation distribution function (ODF) analysis and optical microscope.The results show that in the cold-rolled sheets recrystallized in conventional annealing at the solution temperature,γ fiber textures were formed during recrystallization and then became much visible with the growth of the grain.In addition,114 fiber textures were also generated.In the salt-bath annealing,the process of recrystallization was accelerated,and γ fiber textures developed during generally growing process of the recrystallized grains.The intensive and random textures,mainly Goss component,were formed after stage annealing.

       

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