Microstructure development of different orientated nickel-base single crystal superalloy in directional solidification

2010 ◽  
Vol 61 (1) ◽  
pp. 7-12 ◽  
Author(s):  
Xinbao Zhao ◽  
Lin Liu ◽  
Zhuhuan Yu ◽  
Weiguo Zhang ◽  
Hengzhi Fu
Keyword(s):  
Single Crystal ◽  
Directional Solidification ◽  
Single Crystal Superalloy ◽  
Microstructure Development ◽  
Nickel Base

The Effect of Tensile Stress on Oxidation Behavior of Nickel-Base Single Crystal Superalloy

2021 ◽  
pp. 109737
Author(s):  
Hai-Qing Pei ◽  
Meng Li ◽  
Ping Wang ◽  
Xiao-Hu Yao ◽  
Zhi-Xun Wen ◽  
...  
Keyword(s):  
Tensile Stress ◽  
Single Crystal ◽  
Oxidation Behavior ◽  
Single Crystal Superalloy ◽  
Nickel Base

Tensile behavior of nickel-base single-crystal superalloy DD6

2015 ◽  
Vol 636 ◽  
pp. 608-612 ◽  
Author(s):  
Xinhong Xiong ◽  
Dunmiao Quan ◽  
Pengdan Dai ◽  
Zhiping Wang ◽  
Qiaoxin Zhang ◽  
...  
Keyword(s):  
Single Crystal ◽  
Tensile Behavior ◽  
Single Crystal Superalloy ◽  
Nickel Base

Effect of misorientation on the fatigue life of nickel-base single crystal superalloy DD5 at 980°C

2021 ◽  
pp. 106479
Author(s):  
Piao Li ◽  
Wen Jiang ◽  
Shao-Shi Rui ◽  
Wei-xing Yao ◽  
Hui-ji Shi ◽  
...  
Keyword(s):  
Fatigue Life ◽  
Single Crystal ◽  
Single Crystal Superalloy ◽  
Nickel Base

Creep Behavior of a 4.5% Re Nickel-Base Single Crystal Superalloy at High Temperature

2015 ◽  
Vol 750 ◽  
pp. 139-144 ◽  
Author(s):  
De Long Shu ◽  
Su Gui Tian ◽  
Xin Ding ◽  
Jing Wu ◽  
Qiu Yang Li ◽  
...  
Keyword(s):  
Heat Treatment ◽  
High Temperature ◽  
Single Crystal ◽  
Deformation Mechanism ◽  
Creep Property ◽  
Single Crystal Superalloy ◽  
Micro Cracks ◽  
Initiation And Propagation ◽  
Temperature Ranges ◽  
Nickel Base

By means of heat treatment and creep property measurement, an investigation has made into the creep behaviors of a containing 4.5% Re nickel-base single crystal superalloy at high temperature. Results show that the elements W, Mo and Re are enriched in the dendrite arm regions, the elements Al, Ta, Cr and Co are enriched in the inter-dendrite region, and the segregation extent of the elements may be obviously reduced by means of heat treatment at high temperature. In the temperature ranges of 1070--1100 °C, the 4.5% Re single crystal nickel-based superallloy displays a better creep resistance and longer creep life. The deformation mechanism of the alloy during steady state creep is dislocations slipping in the γ matrix and climbing over the rafted γ′ phase. In the later stage of creep, the deformation mechanism of alloy is dislocations slipping in the γ matrix, and shearing into the rafted γ′ phase, which may promote the initiation and propagation of the micro-cracks at the interfaces of γ/γ′ phases up to the occurrence of creep fracture.

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