Influence of microstructure degradation induced by pretreatment on the creep behavior in Ni-based single-crystal superalloy with different orientations

2020 ◽  
Vol 35 (6) ◽  
pp. 610-622
Author(s):  
Wenyan Gan ◽  
Hangshan Gao ◽  
Yanchao Zhao ◽  
Zhixun Wen ◽  
Guangxian Lu ◽  
...  
Keyword(s):  
Single Crystal ◽  
Creep Behavior ◽  
Single Crystal Superalloy ◽  
Image Position

Abstract

Creep Behavior of Single Crystal Superalloy DD6 at 760°C and 980°C

2007 ◽  
Vol 539-543 ◽  
pp. 3118-3123 ◽  
Author(s):  
Jia Rong Li ◽  
Kai Guo Wang ◽  
Yu Shi Luo ◽  
Shi Zhong Liu ◽  
Mei Han ◽  
...  
Keyword(s):  
Single Crystal ◽  
Creep Behavior ◽  
Single Crystal Superalloy

Creep Behavior of Single Crystal Superalloy DD6 at 760°C and 980°C

2007 ◽  
pp. 3118-3123
Author(s):  
Jia Rong Li ◽  
Kai Guo Wang ◽  
Yu Shi Luo ◽  
Shi Zhong Liu ◽  
Mei Han ◽  
...  
Keyword(s):  
Single Crystal ◽  
Creep Behavior ◽  
Single Crystal Superalloy

scholarly journals Static and dynamic aspects of coupling between creep behavior and oxidation on MC2 single crystal superalloy at 1150 °C

2005 ◽  
Vol 53 (15) ◽  
pp. 4199-4209 ◽  
Author(s):  
Sébastien Dryepondt ◽  
Daniel Monceau ◽  
Fabrice Crabos ◽  
Eric Andrieu
Keyword(s):  
Single Crystal ◽  
Creep Behavior ◽  
Single Crystal Superalloy

Creep Behavior of a Ru-Free Nickel-Based Single Crystal Superalloy at Medium Temperatures

2017 ◽  
Vol 893 ◽  
pp. 212-217 ◽  
Author(s):  
Shuang Liang ◽  
Zhi Xin Liu
Keyword(s):  
Single Crystal ◽  
Creep Behavior ◽  
Diffusion Rate ◽  
Stacking Fault ◽  
Single Crystal Superalloy ◽  
Effect Factors ◽  
Dislocation Configuration ◽  
Screw Dislocations ◽  
Creep Curves ◽  
Contrast Analysis

By means of creep curves measurement and diffraction contrast analysis of dislocation configurations, the creep behavior and effect factors of a Ru-free nickel-based single crystal superalloy within the temperature range of 740~780°C are investigated. Results indicated that, the cubical γ′ phase transformed into the bunch-like structure. During creep at 760°C/750Mpa, no rafted features of γ′ phase is detected, but the degree of distortion of the cubic γ′ phase near fracture regions is increased. During creep, more super-dislocations shearing into γ′ phase of Ru-free alloy are decomposed on {111} plane to form the partials plus stacking fault, which is attributed to the interaction of the elements to decrease the stacking fault energy of the alloy. Moreover, the screw dislocations shearing into γ' phase of Ru-free alloy during creep at 760 °C may cross-slip from {111} to {100} planes for decomposing to form the configuration of the K-W locks, which is attributed to the higher alloying extent for decreasing the diffusion rate of elements. And the dislocation configuration may restrain the slipping of them to improve the creep resistance of alloy due to the non-plane core structure of them.

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