材料工程Issue(3)：82-86,5.
合金化对定向凝固Ti-AI-Nb合金微观结构与力学性能的影响
Alloying Effect on Microstructure and Mechanical Properties of Directionally Solidified Ti-Al-Nb Alloy
摘要
Abstract
Cr- and Mo- doped high-Nb containing Ti-Al alloys were fabricated using directional solidification process. Their microstructures and mechanical properties were examined. Results showed that both the two alloys displayed basket-weave type microstructures. The laths in Ti-16Al-12Nb-3Cr-lMo tended to be inclined with a smaller angle to the withdrawal direction than Ti-16Al-12Nb alloy although the limited thermal gradient and comparatively high withdrawal velocity were employed. Remarkable enhancement in strength and ductility was achieved at room temperature and 650℃.关键词
定向凝固/Ti-AI-Nb合金/力学性能/微观结构Key words
directional solidification/ Ti-Al-Nb alloys/ mechanical property/ microstructure分类
矿业与冶金引用本文复制引用
段秋琦,栾庆冬,刘静,王晓光,彭良明..合金化对定向凝固Ti-AI-Nb合金微观结构与力学性能的影响[J].材料工程,2011,(3):82-86,5.基金项目
国家自然基金(10672153) （10672153）
教育部"新世纪优秀人才支持计划"(NCET-07-0790). （NCET-07-0790）
