TC18钛合金普通退火工艺研究  

Annealing Process of TC18 Titanium Alloy

作　　者：刘道庆[1] 李洪恩[2] 

机构地区：[1]中国人民解放军驻沈阳飞机工业(集团)有限公司军事代表室,辽宁沈阳110034 [2]沈阳飞机设计研究所,辽宁沈阳110035

出　　处：《飞机设计》2014年第3期25-28,共4页Aircraft Design

摘　　要：研究了普通退火工艺参数对TC18(Ti-5Al-5Mo-5V-1Cr-1Fe)钛合金显微组织和力学性能的影响。结果表明,合金强度随退火温度升高先降低后上升,900℃及以上温度退火后合金强度可达到1 100 MPa以上。α相形状、数量及尺寸等方面的变化是影响合金强度和塑性的关键因素。The effect of annealing parameter on the microstructure and mechanical properties of TC18, Ti-5A1-5Mo-5V-1Cr-IFe, alloy has been studied. The results shows that the ultimate strength of TC18 alloy decreased and then increased while the annealing temperature raising. The ultimate strength can reach 1 100 MPa when annealing temperature is above 900%. The change of appearance, size and amount of, phase is the most important reason effecting the strength and ductility of alloy.

关 键 词：TC18 热处理 显微组织 力学性能 

分 类 号：TG146.23[一般工业技术—材料科学与工程]