论文部分内容阅读
1概述Ti－6．5Al－2Zr－1Mo－1V（BT20）钻合金是原苏联航空材料研究院于1964年研制成功的，该合金是亚一811合金改进而成的近。型合金．由于降低了合金的铝含量，使合金的热稳定性得到改善，且该合金焊接性能好，可用于制作300～500t下工作的发动机机区和飞机其它构件．BT20钻
1 Overview The Ti-6.5Al-2Zr-1Mo-1V (BT20) alloy was developed in 1964 by the former Soviet Aeronautical Materials Research Institute. This alloy has been developed from the Asia-811 alloy. Alloy. Due to the reduced aluminum content of the alloy, the thermal stability of the alloy is improved, and the alloy has good welding performance, and can be used for making engine areas and other aircraft components working at 300 to 500t. BT20 drill