EFFECT OF COLD ROLLING AND ANNEALING ON THE TEXTURE OF Ti-18Nb-4Sn ALLOY

Acta Metall Sin

2008, Vol. 44

Issue (11): 1310-1315 DOI:

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EFFECT OF COLD ROLLING AND ANNEALING ON THE TEXTURE OF Ti-18Nb-4Sn ALLOY

YOU Li

北京科技大学新金属材料国家重点实验室

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YOU Li. EFFECT OF COLD ROLLING AND ANNEALING ON THE TEXTURE OF Ti-18Nb-4Sn ALLOY. Acta Metall Sin, 2008, 44(11): 1310-1315 .

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Abstract The microstructures, phase structures and textures of Ti-18Nb-4Sn alloy after cold rolling reduction of 75% and 97% respectively and annealing at 800℃ for different time were measured. It was found that after cold deformation, the sample remained as a single body-centered cubic β phase structure and had rolling texture, and microstructures were characterized by rolling lines. With increasing cold rolling reduction, the intensity of rolling texture changed from weak to strong, At the reduction of 97%, rolling texture were mainly {223} <110> and {112}<110>. After annealing at 800℃ for five minutes, recrystallization was occurred in the samples, and microstructures were made of a large number of equiaxed recrystal grain. After annealing at 800 ℃ for one hour, the recrystallized grain grew. Texture analysis showed that the annealing can not significantly affect the texture of the lower reduction sample, while the texture intensity of the high reduction sample rose sharply after annealing, and a particularly strong annealing texture {111}<112> appeared in the samples. After annealing at 800 ° C for five minutes, the texture state of the high reduction sample was stabilized, and not changed even annealing time extended to one hour.

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Received: 02 November 2007

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https://www.ams.org.cn/EN/ OR https://www.ams.org.cn/EN/Y2008/V44/I11/1310

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