Orientation dependence of creep properties and deformation mechanism in DD6 single crystal superalloy at 760°C and 785MPa

2013 ◽  
Vol 560 ◽  
pp. 47-53 ◽  
Author(s):  
J. Yu ◽  
J.R. Li ◽  
J.Q. Zhao ◽  
M. Han ◽  
Z.X. Shi ◽  
...  
Keyword(s):  
Single Crystal ◽  
Deformation Mechanism ◽  
Orientation Dependence ◽  
Single Crystal Superalloy ◽  
Creep Properties

scholarly journals Effect of long-term thermal exposure on microstructure and creep properties of DD5 single crystal superalloy

China Foundry ◽  
2021 ◽  
Vol 18 (3) ◽  
pp. 185-191
Author(s):  
Xu-dong Wang ◽  
Zhong Yang ◽  
Qiang Gao ◽  
Li-rong Liu
Keyword(s):  
Single Crystal ◽  
Thermal Exposure ◽  
Single Crystal Superalloy ◽  
Creep Properties

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.

Effect of pre-rafting on creep properties of Ni-based single crystal superalloy

2019 ◽  
Vol 110 (6) ◽  
pp. 508-516
Author(s):  
Wenyan Gan ◽  
Zhixun Wen ◽  
Haiqing Pei ◽  
Yamin Zhang ◽  
Hangshan Gao
Keyword(s):  
Single Crystal ◽  
Single Crystal Superalloy ◽  
Creep Properties

Influence of Environment on Creep Properties of MC2 Single Crystal Superalloy at 1150°C

2004 ◽  
Vol 461-464 ◽  
pp. 647-654 ◽  
Author(s):  
Sébastien Dryepondt ◽  
Daniel Monceau ◽  
Fabrice Crabos ◽  
Cyril Vernault
Keyword(s):  
Single Crystal ◽  
Single Crystal Superalloy ◽  
Creep Properties

Influence of Environment on Creep Properties of MC2 Single Crystal Superalloy at 1050°C AND 1150°C

2013 ◽  
pp. 173-180 ◽  
Author(s):  
Sébastien Dryepondt ◽  
Eric Andrieu ◽  
Daniel Monceau ◽  
Fabrice Crabos ◽  
Cyril Vernault
Keyword(s):  
Single Crystal ◽  
Single Crystal Superalloy ◽  
Creep Properties
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