The interaction between Dy, Pt and Mo during the short-time oxidation of (γ’ + β) two-phase Ni Al coating on single crystal superalloy with high Mo content

2021 ◽  
pp. 127999
Author(s):  
Bangyang Zhou ◽  
Jian He ◽  
Liang Liu ◽  
Shixing Wang ◽  
Jingyong Sun ◽  
...  
Keyword(s):  
Single Crystal ◽  
Single Crystal Superalloy ◽  
Two Phase ◽  
Mo Content ◽  
Short Time ◽  
Al Coating

Oxidation and microstructure evolution of Al–Si coated Ni3Al based single crystal superalloy with high Mo content

2015 ◽  
Vol 325 ◽  
pp. 20-26 ◽  
Author(s):  
Xiaolu Tu ◽  
Hui Peng ◽  
Lei Zheng ◽  
Wenyan Qi ◽  
Jian He ◽  
...  
Keyword(s):  
Single Crystal ◽  
Microstructure Evolution ◽  
Single Crystal Superalloy ◽  
Mo Content

Analysis of Multiaxial Low Cycle Fatigue Life for Single Crystal Ni-Based Superalloy Based on Two-Phase Unit Cell Model

2011 ◽  
Vol 117-119 ◽  
pp. 503-508
Author(s):  
Zhi Ping Ding ◽  
Ming Li ◽  
Teng Fei Wang ◽  
Rong Hua Yang
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Single Crystal ◽  
Life Prediction ◽  
Cell Model ◽  
Low Cycle Fatigue ◽  
Element Model ◽  
Unit Cell ◽  
Single Crystal Superalloy ◽  
Two Phase

Based on micro structure of Ni-based single crystal superalloy, a γ/γ’ two-phase unit cell finite element model was established, and its cyclic stress-strain was simulated under tension/torsion cyclic loading. A low cycle fatigue (LCF) life prediction model of single crystal superalloy was proposed by using cyclic plasticity strain energy as a parameter based on energy dissipation theory. Calculation results of macro finite element model and γ/γ’ two-phase unit cell micro finite element model, and multiaxial LCF test data of CMSX-2 Ni-based single crystal superalloy along [001] orientation were applied to fit the LCF life model by multiple linear regression. The results show that the unit cell model not only reflects the microstructure characteristics of single crystal Ni-based superalloy, but also is better than the macro model in accuracy of analysis, and greatly improve the accuracy of fatigue life prediction. Almost test data fall into the factor of 2.0 scatter band.

Crystal Plasticity Assessment to Crystallographic Stage I Cracking in a Ni-Based Single Crystal Superalloy

2018 ◽  
Author(s):  
Motoki Sakaguchi ◽  
Ryota Komamura ◽  
Mana Higaki ◽  
Xiaosheng Chen ◽  
Hirotsugu Inoue
Keyword(s):  
Single Crystal ◽  
Crystal Plasticity ◽  
Stage I ◽  
Single Crystal Superalloy

New Phases in a Multicomponent High Ruthenium Single Crystal Superalloy

2005 ◽  
Vol 475-479 ◽  
pp. 655-660 ◽  
Author(s):  
Q. Feng ◽  
L.J. Rowland ◽  
T.M. Pollock
Keyword(s):  
Single Crystal ◽  
Dendritic Structure ◽  
Thermal Exposure ◽  
Single Crystal Superalloy ◽  
Heusler Phase ◽  
Topologically Close Packed ◽  
Tcp Phases ◽  
Δ Phase

Three unusual Ru-rich phases have been identified in a multicomponent Ni-base single crystal superalloy, including a L21 Ru2AlTa Heusler phase, a B2 RuAl phase and a hcp Re(Ru)-rich δ phase. These phases have their own preferential precipitation location within the dendritic structure. No conventional topologically-close-packed (TCP) phases have been observed with thermal exposure at 950oC for 1500 hours.

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
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