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TC17钛合金在热变形过程中的组织演变规律
发布人：上海艾荔艾合金股份有限公司www.shailiai.cn
更新时间：2016-01-08
为了揭示变形程度和变形温度对β预制坯针状组织的影响规律，在800、820、840和860 ℃这4个不同温度以及20%、40%、60%和80%这4个不同应变量进行小饼等温压缩试验。
TC17钛合金在热变形过程中的组织演变规律Microstructure evolvement regularity of TC17 titanium alloy in hot deformation
为了揭示变形程度和变形温度对β预制坯针状组织的影响规律，在800、820、840和860 ℃这4个不同温度以及20%、40%、60%和80%这4个不同应变量进行小饼等温压缩试验。研究结果表明：变形程度是影响TC17钛合金球化的主要因素。在变形量为40%~60%时，片状α组织受到剪切作用并发生动态再结晶；当变形量大于60%时，组织发生有效球化。在800~860 ℃温度范围内，变形温度越高，越有利于组织球化。
In order to disclosure the influence of deformation temperature and deformation degree on β preforming acicular structure, small pie isothermal compressing test with different strain levels from 20% to 80% was carried out at four different temperatures ranging from 800 to 860 ℃. The results show that deformation degree is the key factor which influences the spheroidization of TC17 alloy. When the deformation rate is 40%−60%, lamellar structure of α phase is broken by the shear force and dynamic recrystallization takes place. When the deformation rate is higher than 60%, the spheroidization is effective. In the tempeature range of 800−860 ℃, the higher the temperature, the better the spheroidization.
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AILIAI has been a reliable partner and supplier of sophisticated and high-quality semi-finished products maed of alloys. In dialogue with our customers, we optimise our products to meet the specific application requirements. AILIAI develops the best alloy material solutions for current and future challenges.
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For more information on the alloys and services that we supply, call us at 086-021-67660801 or email us at kefu@ailiaigroup.com. You can also get in touch on social media, we are constantly active on Weibo, Weixin and LinkedIn.
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