TC6钛合金环形锻件组织与性能的研究  

Research on Microstructure and Properties of TC6 Titanium Alloy Ring Forging

作　　者：杨洪涛[1] 何剑雄[2] 谭勇[1] 王耀湘[2] 王淑云[1] 

机构地区：[1]北京航空材料研究院,北京100095 [2]四达机械制造公司,咸阳712201

出　　处：《宇航材料工艺》2005年第4期52-54,共3页Aerospace Materials & Technology

摘　　要：为确定变形参数对TC6钛合金组织、性能的影响,分别用稍高于和低于β相变点的温度对TC6合金进行了环形件的成形,对这两种制度成形锻件的组织、性能的研究表明:TC6合金在稍高于β相变点的单相区变形,显微组织为网篮状组织;而在α+β两相区成形,得到的组织为等轴组织。TC6合金近β锻造和α+β两相区锻造的常规室温、高温力学性能没有明显差异。采用近β锻造可在不影响力学性能的情况下提高TC6合金的可锻性。To define the influence of deformation parameters on microstructure and properties,TC6 titanium alloy rings are formed at the temperature of a bit above and below the β phase transformation point. The microstructure and mechanical properties are studied. The results show that the microstructure will be basket-weave arrangement deformed at a bit above the β phase transformation point ahd will be equiaxed below the β phase transformation point. But the mechanical properties have no remarkable difference. Near-β-forging can improve the deformability of TC6 without reducing mechanical properties.

关 键 词：TC6钛合金 显微组织 力学性能 可锻性 环形锻件组织 

分 类 号：TG146.23[一般工业技术—材料科学与工程]