摘要
对TC4钛合金进行静液挤压变形强化工艺试验,并对变形后的材料组织、性能进行研究。结果表明:该技术可以显著提高钛合金棒材强度10%以上,而断面收缩率降低较少;变形后的显微组织由等轴晶变为条形组织,愈接近坯料边部条形组织愈细,且取向渐趋一致。这种组织形态的变化,使材料强度得到提高。
Hydrostatic extrusion experiment of TC4 titanium alloy was done, and the microstructure and properties of material after deformation were studied. The results show that the strength of titanium bar significantly improves by 10% while the section shrinkage decreases little. After being extruded hydrostaticly, the microstructure of titanium alloy evolves from equiaxial crystal to strip organization, which is thinner and the orientation of which tends to be identical when closer to the blank side. The microstructure change leads to the strength increment of as-extruded titanium alloy.
出处
《兵器材料科学与工程》
CAS
CSCD
2011年第4期77-79,共3页
Ordnance Material Science and Engineering
关键词
静液挤压
钛合金
变形强化
显微组织
hydrostatic extrusion
titanium alloy
deformation strengthening
microstructure
