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Creep Behaviors of FGH95 Powder Ni-Base Superalloy
Alternative TitleCreep Behaviors of FGH95 Powder Ni-Base Superalloy
Tian Sugui1; Liu Yang1; Zhou Xiaoming2; Zhao Zhonggang1; Bao Xianyu1; Wang Wuxiang2
2009
Source PublicationCHINESE JOURNAL OF AERONAUTICS
ISSN1000-9361
Volume22Issue:4Pages:444-448
AbstractThis article makes an investigation into the creep behavior and deformation features of FGH95 powder Ni-base superalloy by means of creep curves and microstructural observation. Results show that this superalloy exposes obvious sensibility to the applied temperature and stresses in the experimental range. Microstructure of the alloy consists of gamma' phase of various sizes and dispersed carbide particles precipitated in the wider crystal boundaries between the powder particles. During the creep, the deformation of the alloy occurs in the form of single- or double-oriented slipping inside the grains, and some of the finer carbide particles are precipitated near the slipping traces. The wide grain boundaries might be broken into the finer grains due to severe deformation. The deformation mechanism of the alloy during creep is thought to be the activation of dislocations of double-oriented slipping, including (1/2) dislocation inside the gamma matrix phase and super-dislocation inside the gamma' phase. The formation of the stacking faults and (1/3) super-Shockleys partial dislocation configuration is attributed to the decomposition of super-dislocation in the gamma' phase.
Other AbstractThis article makes an investigation into the creep behavior and deformation features of FGH95 powder Ni-base superalloy by means of creep curves and microstructural observation. Results show that this superalloy exposes obvious sensibility to the ap-plied temperature and stresses in the experimental range. Microstructure of the alloy consists of γ' phase of various sizes and dispersed carbide particles precipitated in the wider crystal boundaries between the powder particles. During the creep, the de-formation of the alloy occurs in the form of single- or double-oriented slipping inside the grains, and some of the finer carbide particles are precipitated near the slipping traces. The wide grain boundaries might be broken into the finer grains due to severe deformation. The deformation mechanism of the alloy during creep is thought to be the activation of dislocations of dou-ble-oriented slipping, including (1/2) dislocation inside the "/matrix phase and super-dislocation inside the γ' phase. The formation of the stacking faults and (1/3) super-Shockleys partial dislocation configuration is attributed to the de-composition of super-dislocation in the γ' phase.
KeywordFGH95 powder Ni-base superalloy microstructure creep deformation features
Indexed ByCSCD
Language英语
CSCD IDCSCD:3654481
Citation statistics
Cited Times:9[CSCD]   [CSCD Record]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/157648
Collection中国科学院金属研究所
Affiliation1.中国科学院金属研究所
2.Beijing Institute Aeronaut Mat, Beijing 100095, Peoples R China
Recommended Citation
GB/T 7714
Tian Sugui,Liu Yang,Zhou Xiaoming,et al. Creep Behaviors of FGH95 Powder Ni-Base Superalloy[J]. CHINESE JOURNAL OF AERONAUTICS,2009,22(4):444-448.
APA Tian Sugui,Liu Yang,Zhou Xiaoming,Zhao Zhonggang,Bao Xianyu,&Wang Wuxiang.(2009).Creep Behaviors of FGH95 Powder Ni-Base Superalloy.CHINESE JOURNAL OF AERONAUTICS,22(4),444-448.
MLA Tian Sugui,et al."Creep Behaviors of FGH95 Powder Ni-Base Superalloy".CHINESE JOURNAL OF AERONAUTICS 22.4(2009):444-448.
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