Effect of Deformation on Continuous Cooling Phase Transformation Behaviors of 780 MPa Nb-Ti Ultra-High Strength Steel

2011 ◽  
Vol 82 (12) ◽  
pp. 1417-1424 ◽  
Author(s):  
Xiaonan Wang ◽  
Linxiu Du ◽  
Hui Xie ◽  
Hongshuang Di ◽  
Dehao GU
Keyword(s):  
Phase Transformation ◽  
High Strength Steel ◽  
High Strength ◽  
Continuous Cooling ◽  
Ultra High Strength Steel ◽  
Cooling Phase

Principle and Model of Phase Transformation in Ultra-High Strength Steel for Cone Crusher

2016 ◽  
Vol 850 ◽  
pp. 636-641
Author(s):  
Wei Wang ◽  
Ren Bo Song ◽  
Shi Guang Peng ◽  
Ru Wen Zheng ◽  
Zhi Dong Tan ◽  
...  
Keyword(s):  
Phase Transformation ◽  
Cooling Rate ◽  
High Strength Steel ◽  
High Strength ◽  
Lower Bainite ◽  
Transformation Model ◽  
Expansion Curve ◽  
Ultra High Strength Steel ◽  
Cone Crusher ◽  
High Degree

The principle of phase transformation in ultra-high strength steel for cone crusher was studied by DIL805 thermal mechanical simulate, and the critical temperature was determined. The Austenite continuous cooling transformation (CCT) diagram of the steel was confirmed by thermal expansion curve, dilatometry and metallography. The phase transformation model was established and offered a theory for deciding parameters of heat treatment process. The results proved that: when the cooling rate was under 0.5 °C/s, the structure was mainly Pearlite and Bainite. With the increase of cooling rate, the content of lower Bainite increased. When it came to 1°C/s , Martensite start to transform from Austenite. When the cooling rate is 5°C/s, Pearlite disappears, Bainite and Martensite were in the majority. Meanwhile, the mathematical equations of phase transformation have high degree to fit the experimental results, and the phase transformation model is feasible.

Isochronal phase transformation of Nb–V–Ti microalloyed ultra-high strength steel upon cooling

2017 ◽  
Vol 125 ◽  
pp. 423-430
Author(s):  
Ji Dong ◽  
Chenxi Liu ◽  
Yongchang Liu ◽  
Xiaosheng Zhou ◽  
Qianying Guo ◽  
...  
Keyword(s):  
Phase Transformation ◽  
High Strength Steel ◽  
High Strength ◽  
Ultra High Strength Steel

Effect of Vanadium on the Phase Transformation Behavior of Ti-Mo Microalloyed Ultra-High Strength Steel

2018 ◽  
Vol 89 (9) ◽  
pp. 1800112 ◽  
Author(s):  
Xiaolong Gan ◽  
Gengwei Yang ◽  
Gang Zhao ◽  
Xinping Mao ◽  
Huihui Huang ◽  
...  
Keyword(s):  
Phase Transformation ◽  
High Strength Steel ◽  
High Strength ◽  
Transformation Behavior ◽  
Phase Transformation Behavior ◽  
Ultra High Strength Steel

CRUCIBLE D6

Alloy Digest ◽  
1962 ◽  
Vol 11 (5) ◽  
Keyword(s):  
Fracture Toughness ◽  
Tensile Strength ◽  
Low Temperature ◽  
High Strength Steel ◽  
High Strength ◽  
Heat Treating ◽  
Steel Company ◽  
Temperature Performance ◽  
Ultra High Strength Steel ◽  
Crucible Steel

Abstract Crucible D6 is a low alloy ultra-high strength steel developed for aircraft-missile applications and primarily designed for use in the 260,000-290,000 psi tensile strength range. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness, creep, and fatigue. It also includes information on low temperature performance as well as forming, heat treating, machining, and joining. Filing Code: SA-129. Producer or source: Crucible Steel Company of America.

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