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| 1 | Creep Behaviors of DA Casting and Rolling GH4169 Superalloy显示文摘After the billet of Casting and Rolling GH4169 alloy was directly aged (DA) treated at 720 ℃ and 620 ℃, creep behavior and deformed features of the alloy were investigated by means of the measurement of creep curves and microstructure observation. Results show that the DA Casting and Rolling GH4169 Superalloy displays a lower strain rate during creep and longer lifetimes under the condition of the applied stress of 700 MPa at 650 ℃ , the creep lifetimes of the alloy decrease to 127 h as temperature is elevated to 660 ℃ , and therefore the alloy exhibits an obvious sensitivity of the applied temperatures. During creep, the deformation mechanism of the alloy is thought to be the twinning deformation and slipping of dislocation within the twinning regions. Thereinto, the dislocation slipping of the single and double orientations occur within the twins. As creep enters the tertiary steady state stage, the micro-crack appears on the grains boundaries along the direction vertical to the applied stress axis, and expands along the grain boundary up to fracture. | Tian Sugui Zhao Zhonggang Liu Yang Bao Xianyu Chen Liqing Liu Xianghua | 2009 | 稀有金属材料与工程2009，38，A03： | 10 |
| 2 | Influence of Temperature on Stacking Fault Energy and Creep Mechanism of a Single Crystal Nickel-based Superalloy显示文摘The influence of temperatures on the stacking fault energies and deformation mechanism of a Recontaining single crystal nickel-based superalloy during creep at elevated temperatures was investigated by means of calculating the stacking fault energy of alloy, measuring creep properties and performing contrast analysis of dislocation configuration. The results show that the alloy at 760 °C possesses lower stacking fault energy, and the stacking fault of alloy increases with increasing temperature. The deformation mechanism of alloy during creep at 760 °C is γ′ phase sheared by <110> super-dislocations, which may be decomposed to form the configuration of Shockley partials plus super-lattice intrinsic stacking fault, while the deformation mechanism of alloy during creep at 1070 °C is the screw or edge superdislocations shearing into the rafted γ′ phase. But during creep at 760 and 980 °C, some superdislocations shearing into γ′ phase may cross-slip from the {111} to {100} planes to form the K–W locks with non-plane core structure, which may restrain the dislocations slipping to enhance the creep resistance of alloy at high temperature. The interaction between the Re and other elements may decrease the diffusion rate of atoms to improve the microstructure stability, which is thought to be the main reason why the K–W locks are to be kept in the Re-containing superalloy during creep at 980 °C. | Sugui Tian Xinjie Zhu Jing Wu Huichen Yu Delong Shu Benjiang Qian | 2016 | Journal of Materials Science & Technology2016，32，8： | 7 |
| 3 | Creep Behaviors of FGH95 Powder Ni-Base Superalloy显示文摘This 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 γ' 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)<110> dislocation inside the γ matrix phase and <110> super-dislocation inside the γ' phase.The formation of the stacking faults and(1/3)<112> super-Shockleys partial dislocation configuration is attributed to the decomposition of <110> super-dislocation in the γ' phase. | Tian Sugui Liu Yang Zhou Xiaoming Zhao Zhonggang Bao Xianyu Wang Wuxiang | 2009 | Chinese Journal of Aeronautics2009，22，4： | 6 |
| 4 | Deformation and damage features of a Re/Ru-containing single crystal nickel base superalloy during creep at elevated temperature显示文摘The deformation and damage features of a 4.5%Re/3.0%Ru-containing single crystal nickel-based superalloy during the creep in the temperature range of 1040–1070 °C and stress range of 137–180 MPa was investigated by means of creep properties measurement and contrast analysis of dislocation configuration. The results showed that the alloy exhibited a better creep resistance in the range of the testing temperatures and stresses, the deformation mechanism of the alloy during steady state creep was dislocations climbing over the rafted γ′ phase.In the latter period of creep, the deformation mechanism of the alloy was dislocations shearing into the rafted γ′phase. It is believed that the dislocations shearing into γ′ phase may cross-slip from {111} to {100} planes for forming the K-W locks to restrain the slipping and cross-slipping of dislocations on {111} plane. As the creep goes on, the alternate slipping of dislocations results in the twisted of the rafted γ′ phase to promote the initiation and propagation of cracks along the γ/γ′ interfaces up to creep fracture, which is considered to be the damage and fracture feature of alloy during creep at high temperature. | Guoqi Zhao Sugui Tian Shunke Zhang Ning Tian Lirong Liu | 2019 | Progress in Natural Science:Materials International2019，29，2： | 4 |
| 5 | Influence of precipitate morphology on tensile creep of a single crystal nickel-base superalloy显示文摘 | Li Shui Tao Jin Sugui Tian Zhuangqi Hu | 2006 | Materials Science & Engineering A2006，，： | 2 |
| 6 | Influence of Pre-Compressive Creep on Internal Friction Stress and Creep Parameters of Nickel-Base Single Crystal Superalloys显示文摘By means of pre-compressive creep treatment, the cubic γ′ phase in a nickel base single crystal superalloy is transformed into the P-type rafted structure. And the influence of the pre-compressive creep on the internal friction stress and creep lifetimes of the superalloy are investigated by means of the measurement of the creep curves and microstructure observation. Results show that, compared to the P-type structure alloy, the full heat treated state alloy displays a bigger internal friction stress value of dislocation motion during steady state creep and a longer creep lifetimes. The creep activation energies of the full heat treated and P-type structures alloys are measured to be 462 kJ/mol and 412 kJ/mol, respectively. Thereinto, the P-type rafted γ′ phase in the alloy is transformed into the N-type structure during tensile creep. And the N-type γ′ phase transformed from the P-type structure displays a shorter size in length, this is a main reason of the P-type structure alloy possessing a shorter creep lifetimes due to creep dislocation moving easily over the rafted γ′ phase. | Yu Xingfu Tian Sugui Zhao Zhonggang Du Hongqiang Shang Lijuan Cui Shusen | 2009 | 稀有金属材料与工程2009，38，A03： | 2 |
| 7 | Features and effect factors of creep of single-crystal nickel-base superalloys显示文摘 | Sugui Tian Jinghua Zhang Yongbo Xu Zhuangqi Hu Hongcai Yang Xin Wu | 2001 | Metallurgical and Materials Transactions A2001，，12： | 1 |
| 8 | Agrobacterium tumefaciens-mediated transformation of Aspergillusfumigatus : an efficient tool for insertional mutagenesis and targeted gene disruption 显示文摘 | Sugui JA Chang YC Kwon-Chung KJ | 2005 | Appl Environ Microbiol2005，71，： | 1 |
| 9 | Aspergillus Jumigatus conidial melanin modulates host cytokine response 显示文摘 | Chai LY Netea MG Sugui J | 2010 | Immunobiology2010，215，11： | 1 |
| 10 | Agrobacteri urn tumefaciens mediated transformation of Aspergillus fumigatus: an efficient tool for insertional mutagenesis and targeted gene disruption显示文摘 | Sugui J A Chang Y C Kwon-Chung K J etal | 2005 | Appl Environ Microhiol2005，71，4： | 1 |
| 11 | Human polymorphonuclear leukocytes inhibit Aspergillus fumigatus conidial growth by lactoferrin-mediated iron depletion 显示文摘 | Zarember KA Sugui JA Chang YC | 2007 | J Immunol2007，178，10： | 1 |
| 12 | Gliotoxin is a virulence factor of Aspergillus fumigatus : gliP deletion attenuates virulence in mice immunosuppressed with hydrocortisone显示文摘 | Sugui JA Pardo J Chang YC | 2007 | Eukaryot Cell2007，6，9： | 1 |
| 13 | What do we know about the role of gliotoxin in the pathobiology of Aspergillus furnigatus? 显示文摘 | Kwon-Chung KJ Sugui JA | 2009 | Med Mycol2009，47，1： | 1 |
| 14 | Agrobacterium-mediated transformation of the Aspergillus fumigates:an efficient tool for insertional mutagenesis and targeted gene disruption显示文摘 | Sugui JA Chang YC Kwon-Chung KJ | 2005 | Applied and Environmental Microbiology2005，71，4： | 1 |
| 15 | Vertebroplasty:clinical experience and follow-up results显示文摘 | Martin JB Jean B Sugui K | 1999 | Bone1999，25，： | 1 |
| 16 | Vertebroplasty:clinical experience and follow-up results显示文摘 | Martin JB Jean B Sugui K | 1999 | Bone1999，25，2： | 1 |
| 17 | Gliotoxin is a virulencefactor of Aspergillus fumigatus: gliP deletion attenuatesvirulence in mice Immunosuppressed with hydrocortisone显示文摘 | Sugui JA Pardo J Chang YC | 2007 | Eukaryot Cell2007，6，： | 1 |
| 18 | Gliotoxin is a virulence factor of A spergillus fumigatus: gliP deletion attenuates virulence in mice immunosupprcssed with hydrocortisone 显示文摘 | Sugui JA Pardo J Chang YC | 2007 | Eukaryot Cell2007，6，9： | 1 |
| 19 | antimutagenic effect of Agaricus blazei murrill mushroom on the genotoxicity induced by cyclophosphamide显示文摘 | Delmanto R D de Lima P L Sugui M M | 2001 | Mutat Res2001，496，： | 1 |
| 20 | Gliotoxin is a virulence factor of Aspergillus fumigatus:gliP deletion attenuates virulence in mice immunesuppressed with hydrocortisone显示文摘 | Sugui JA Pardo J Chang YC | 2007 | Eukaryot Cell2007，6，9： | 1 |
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