BTi-62421S高温钛合金的热成形及超塑成形性能
发布人：上海艾荔艾合金股份有限公司www.shailiai.cn
更新时间：2016-01-24
对新型高温钛合金BTi-62421S进行卷圆、冷/热冲压成形、热涨性、热成形等实验研究，获得了该合金的热成形性能；通过高温超塑性拉伸试验，获得了该合金超塑性成形的最佳工艺参数，并进行该合金框架、舵面零件的超塑性成形试验。
BTi-62421S高温钛合金的热成形及超塑成形性能Hot forming and superplastic forming performance of high-temperature BTi-62421S titanium alloy对新型高温钛合金BTi-62421S进行卷圆、冷/热冲压成形、热涨性、热成形等实验研究，获得了该合金的热成形性能；通过高温超塑性拉伸试验，获得了该合金超塑性成形的最佳工艺参数，并进行该合金框架、舵面零件的超塑性成形试验。结果表明：BTi-62421S钛合金在(620±10)℃下保温20~25 min可实现筒形件的热涨形，在750 ℃左右可实现口框类零件的热成形，但热成形性能存在各向异性；该合金在温度为920 ℃，应变速率为1.0×10−3 s−1时具有最佳超塑性能，伸长率达到448.5%，在此条件下可成形出满足设计要求的舵面及框架样件。
Experiments including crimping, cold pressing, hot pressing, hot bulging, hot forming were carried out to achieve the hot deforming performance of BTi-62421S alloy. The tensile tests under superplastic temperature were also carried out to determine the optimum parameters of superplastic forming. Furthermore, a BTi-62421S alloy frame and a rudder were superplastic deformed. The results show BTi-62421S alloy tube can be hot-bulged at (620±10) ℃for 20−25 min, and a big cage part can be hot-formed at about 750 ℃ although the alloy is anisotropic. BTi-62421S alloy has the optimal superplastic performance with the elongation of 448.5% when being deformed at the temperature of 920℃ and the strain rate of 1.5×10−4 s−1. A BTi-62421S titanium alloy frame and a rudder satisfying with the design requirements can be formed successfully under this condition.
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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, LinkedIn and Twitter.