摘要
研究了铬含量对Ti-5Mo-5V-3Al-Cr系合金相变点和锻造抗力的影响规律,采用不同的固溶温度、冷却方式和时效处理制度对Ti-5Mo-5V-6Cr-3Al合金显微组织和力学性能的影响进行了研究。结果表明:降低Ti-5Mo-5V-3Al-Cr系合金中的铬含量可以提高相变点和降低锻造抗力。Ti-5Mo-5V-6Cr-3Al合金经800℃×30 min水冷固溶处理后的综合力学性能较热锻后优良;经800℃×30 min水冷+580℃×4 h空冷时效处理后,合金棒材具有优良的综合力学性能,可以作为锻造机加工成品的最终热处理强化工艺,可以满足不同用户对合金的使用要求。
The effects of Cr content on the β transus temperature and stress for Ti-5Mo-5V-3Al-Cr system alloy were studied. The microstructure and mechanical properties of Ti-5Mo-5V-6Cr-3Al alloy were investigated through different solution treatments, cooling methods and aging treatments. The results show that the β transus temperature can be improved and the stress can be decreased by reducing Cr content. The mechanical properties of Ti-5Mo-5V-6Cr-3Al alloy after solution treatment at 800 ℃ for 30 min（WQ） are better than after hot forging. The comprehensive mechanical properties are excellent after heat treatment at 800 ℃ for 30 min（WQ） and then aging at 580 ℃ for 4 h（AC）, which can meet the requirement of the alloy for different clients.
出处
《热加工工艺》
CSCD
北大核心
2014年第22期187-189,共3页
Hot Working Technology
基金
陕西省工业科技攻关项目(2012K07-03)
西安市未央区科技计划项目(201312)
