Effect of melt thermal history on solidification behavior and microstructural characteristics of a third-generation Ni-based single crystal superalloy

2016 ◽  
Vol 688 ◽  
pp. 430-437 ◽  
Author(s):  
Haifeng Wang ◽  
Haijun Su ◽  
Jun Zhang ◽  
Yafeng Li ◽  
Lin Liu ◽  
...  
Keyword(s):  
Single Crystal ◽  
Thermal History ◽  
Single Crystal Superalloy ◽  
Third Generation ◽  
Solidification Behavior ◽  
Microstructural Characteristics

Transverse Tensile Properties of a Nickel-based Third Generation Single Crystal Superalloy

2018 ◽  
Vol 47 (10) ◽  
pp. 2964-2969
Author(s):  
Yang Wanpeng ◽  
Li Jiarong ◽  
Liu Shizhong ◽  
Shi Zhenxue ◽  
Zhao Jinqian ◽  
...  
Keyword(s):  
Single Crystal ◽  
Tensile Properties ◽  
Single Crystal Superalloy ◽  
Third Generation ◽  
Transverse Tensile

Directional Solidification Behavior of CMSX-6 Superalloy

2014 ◽  
Vol 788 ◽  
pp. 554-559
Author(s):  
Shuai Zheng ◽  
Yu Liang Jia ◽  
Jiao Tang
Keyword(s):  
Single Crystal ◽  
Directional Solidification ◽  
Thermal Gradient ◽  
First Generation ◽  
Primary Dendrite ◽  
Solidification Rate ◽  
Experimental Results ◽  
Single Crystal Superalloy ◽  
Solidification Behavior ◽  
Rate Range

The directional solidification behavior of a first generation single crystal superalloy CMSX-6 was investigated. The solidification rate range in 25μm/s to 100μm/s and a thermal gradient G of 30K/cm were used for the present study. The experimental results show that the primary dendrite arm space (PDAS) decreased from (432±8) μm to (369±4) μm as the solidification rate increased, and the sizes of the eutectic pools also decreased as the solidification rate increased. And the volume fractions of eutectic γ/γ' were about 7% to 9% with different solidification rate. The γ/γ'- eutectic was comprised with coarse γ' phase and fine γ/γ' network. The morphology of the γ/γ’ eutectic supported the possibility that the solidification of γ/γ’ eutectic initiates with the formation of fine γ/γ’.

SOLIDIFICATION BEHAVIOR OF A Pt-CONTAINING Ni-BASED SINGLE CRYSTAL SUPERALLOY

2013 ◽  
Vol 49 (12) ◽  
pp. 1567
Author(s):  
Huiwen LIN ◽  
Yizhou ZHOU ◽  
Xuan ZHANG ◽  
Tao JIN ◽  
Xiaofeng SUN
Keyword(s):  
Single Crystal ◽  
Single Crystal Superalloy ◽  
Solidification Behavior

Optimization of Ta Content of a Third Generation Ni3Al Base Single Crystal Superalloy

2015 ◽  
Vol 816 ◽  
pp. 304-309
Author(s):  
Song Ming Han ◽  
Wei Li ◽  
Yue Ma ◽  
Xin Bao Zhao ◽  
Shu Suo Li ◽  
...  
Keyword(s):  
Single Crystal ◽  
Thermodynamic Calculation ◽  
Volume Fraction ◽  
Primary Dendrite ◽  
Solution Treatment ◽  
Experimental Results ◽  
Single Crystal Superalloy ◽  
Third Generation ◽  
Primary Dendrite Arm Spacing ◽  
Calculation Results

In order to optimize the Ta content of a newly developed 3rd generation Ni3Al-based single crystal superalloy, a series of alloys with the varying of Ta content of 3.0, 4.2, 4.5, 6.0wt. % were prepared. The experimental results showed that with the addition of Ta, the size and volume fraction of bulky γ' phase significantly increased while the primary dendrite arm spacing decreased. Meanwhile, the difficulty of solution treatment significantly increased with increasing Ta content. And the thermodynamic calculation results showed that the volume fractions of γ' phase in this series of alloys were significantly higher than those of typical Ni based single crystal superalloys, indicating that the 3rd generation Ni3Al based single crystal superalloys can serve in the temperature of 1150oC to 1200oC.

Development of a Low-Cost Third Generation Single Crystal Superalloy DD9

2016 ◽  
pp. 55-63 ◽  
Author(s):  
J.R. Li ◽  
S.Z. Liu ◽  
X.G. Wang ◽  
Z.X. Shi ◽  
J.Q. Zhao
Keyword(s):  
Single Crystal ◽  
Low Cost ◽  
Single Crystal Superalloy ◽  
Third Generation
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