摘要
主要研究了在α+β区总变形量对BT-20钛合金厚板组织与性能的影响,获得了在两相区总变形量控制在71%、85%和91%生产出的三种规格厚板在相同热处理制度下的显微组织以及所对应的室温力学性能。结果表明,随着在两相区总变形程度增大,逐渐消除晶界α相和晶内α相之间的差别,组织更趋于等轴化、细小化,使该合金厚板的室温力学性能得到进一步改善。
The effects of total deformation on the microstructure and room temperature tensile properties of BT-20 alloy plate were studied in α＋β. The microstructure, and the room-temperature mechanical properties of three dimension plates produced in two phases domain with 71%,85% and 91% total deformation were obtained under the same heat treating system. The results show that the difference of intergranular α and intracrystalline α gradually disappears with total deformation increasing in two phases domain, the microstructure of BT-20 alloy plate becomes equiaxial and minute, which further improves the mechanical properties of BT-20 alloy plate at room-temperature.
出处
《热加工工艺》
CSCD
北大核心
2007年第14期4-5,共2页
Hot Working Technology
