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首页> 外文会议>International Conference on Aluminum Alloys >The grain refinement of 7050 alloy using al-5ti-1b and al-3ti-0.15c grain refiners
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The grain refinement of 7050 alloy using al-5ti-1b and al-3ti-0.15c grain refiners

机译：使用Al-5TI-1B和Al-3Ti-0.15C晶粒晶粒的7050合金的晶粒细化

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摘要

The morphologies of particles in commercial Al-3Ti-0.2C and Al-5Ti-1B alloy used in the refining experiments were investigated and the grain refining response to 7050 alloy was studied in this paper. The results show that Al-3Ti-0.2C master alloy failed to produce an adequate grain refinement at an equal addition level to that which sufficed with the Al-5Ti-1B alloy. With increasing the holding time, settlement phenomena of TiC particles and TiB_2 particles in 7050 melt were both investigated and the settling time of the particles did not match with the results calculated by Stoke's law. Based on the experimental results, the efficiency of grain refinement for 7050 casting using Al-3Ti-0.2C grain refiners seems weaker than those using Al-5Ti-1B grain refiners.
机译：研究了在炼油实验中使用的商业Al-3Ti-0.2C和Al-5TI-1B合金中颗粒的形态，并在本文中研究了对7050合金的晶粒精制反应。结果表明，Al-3Ti-0.2C主合金未能以相等的添加水平产生足够的晶粒细化，以至于Al-5Ti-1b合金。随着7050熔融中的TiC颗粒和Tib_2颗粒的沉降现象均研究，颗粒的沉降时间与由斯托克定律计算的结果不匹配。基于实验结果，使用Al-3Ti-0.2C晶粒炼油厂7050铸造的晶粒细化的效率似乎比使用Al-5ti-1B晶粒晶粒的粒度较弱。

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