Microstructure and mechanical properties of a new high-strength and high-toughness titanium alloy

Rare Metals ◽  
2016 ◽  
Author(s):  
Dong Li ◽  
Song-Xiao Hui ◽  
Wen-Jun Ye ◽  
Cheng-Lin Li
Keyword(s):  
Mechanical Properties ◽  
Titanium Alloy ◽  
High Strength ◽  
High Toughness ◽  
Microstructure And Mechanical Properties

Effect of Hot Processing on Mircrostructure and Properties of Flat Billets of TA15 Titanium Alloy

2021 ◽  
Vol 1016 ◽  
pp. 906-910
Author(s):  
Xin Hua Min ◽  
Cheng Jin
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
Titanium Alloy ◽  
High Temperature ◽  
Room Temperature ◽  
High Strength ◽  
Slow Cooling ◽  
Microstructure And Mechanical Properties ◽  
Ta15 Titanium Alloy ◽  
The Ideal

In this paper,effect of the different forging processes on the microstructure and mechanical properties of the flat flat billets of TA15 titanium alloy was investigated.The flat billiets of 80 mm×150 mm×L sizes of TA15 titanium alloy are produced by four different forging processes.Then the different microstrure and properties of the flat billiets were obtained by heat treatment of 800 °C~850 °C×1 h~4h.The results show that, adopting the first forging temperature at T1 °C、slow cooling and the second forging temperature at T2°C 、quick cooling, the primary αphases content is just 10%, and there are lots of thin aciculate phases on the base. This microstructure has both high strength at room temperature and high temperature, while the properties between the cross and lengthwise directions are just the same. So the hot processing of the first forging temperature at T1 °C、slow cooling and the second forging temperature at T2°C 、quick cooling is choosed as the ideal processing for production of aircraft frame parts.

Research on High Strength and High Toughness Titanium Alloy with Damage Tolerance

2010 ◽  
Vol 654-656 ◽  
pp. 586-589
Author(s):  
Yong Qing Zhao ◽  
Heng Lei Qu
Keyword(s):  
Mechanical Properties ◽  
Mechanical Property ◽  
Titanium Alloy ◽  
Titanium Alloys ◽  
Aging Temperature ◽  
Damage Tolerance ◽  
High Strength ◽  
Solution Temperature ◽  
National Project ◽  
High Toughness

As the concept of aerospace design is changed, research objectives of titanium alloys also changed from high strength to high damage tolerance. High strength, high toughness titanium alloys with damage-tolerance have been investigated under the support of a national project since 2003. TC21 titanium alloy is the first Chinese-developed high strength, high toughness and damage-tolerance titanium alloy. The mechanical property of TC21 alloy is sensitive to solution temperature and aging temperature. The rods of TC21 alloy with the diameter of 20mm and 90mm possess good mechanical properties after solution at 900°C followed by aging at 600°C.

Influence of Heat Treatment on Microstructure and Mechanical Properties of Cr8Mo2SiV Cold Work Die Steel: A Comparison with Cr12MoV Steel

2013 ◽  
Vol 711 ◽  
pp. 103-106
Author(s):  
Shao Hong Li ◽  
Na Min ◽  
Jun Wan Li ◽  
Xiao Chun Wu
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
Cold Work ◽  
Solution Treatment ◽  
High Strength ◽  
Die Steel ◽  
High Toughness ◽  
Microstructure And Mechanical Properties

Microstructure and mechanical properties of a new developed cold work die steel (SDC99) were investigated under solution treatment and comparison with Cr12MoV steel. The new developed high strength and high toughness cold work die steel has overcome the weakness of Cr12MoV which failed with tipping, fracture and collapse in services due to low toughness. The toughness achieves to 80J which is twice as Cr12MoV while the hardness is 62HRC.

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