Effects of Annealing Heat Treatment on Microstructure and Properties of TA15 Titanium Alloy
-
摘要: 研究了不同的退火热处理制度对TA15钛合金显微组织、室温拉伸性能、高温拉伸性能、室温冲击韧性及硬度的影响。结果表明:在相变点以上温度退火,合金具有较高的室温、高温强度,但室温塑性、高温塑性、室温冲击韧性较低;在相变点以下温度退火,合金的室温、高温断裂强度在860℃退火时出现峰值,而室温塑性、高温断面收缩率和室温冲击韧性则随着退火温度的升高而提高;同单重退火相比,双重退火、三重退火对提高合金性能的作用不大。Abstract: Effects of annealing heat treatment on microstructure,room temperature tensile properties,high temperature tensile properties and room temperature impact toughnesses of TA15 titanium alloy were studied.The results show that higher room temperature strength,high temperature strength and lower room temperature ductility,high temperature ductility,room temperature impact toughness of TA15 titanium alloy were achieved by annealing above transformation point.Under transformation point,room temperature fracture strength and high temperature fracture strength have a peak value on the annealing temperature of 860℃,room temperature ductility,high temperature reduction of crosssection area,room temperature impact toughness can be increased by increasing annealing temperature;Double annealing and triple annealing that compare with single annealing can not improve properties of TA15 titanium alloy.
-
Keywords:
- TA15 titanium alloy /
- Annealing /
- Microstructure
-
计量
- 文章访问数: 31
- HTML全文浏览量: 12
- PDF下载量: 4
下载:
