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HIGH TEMPERATURE TENSILE FRACTURE BEHAVIOR OF ORIENTED DD100 SINGLE CRYSTAL SUPERALLOY

Author C.D. Zhou1 , 2) , J.X. Yu1) , X.P. Dong1) , Y.H. Zhang1) , C.Q. Sun3) and T.F. Li4) 1) The State Education Commission Open Research Laboratory for High Temperature Materials and Testing , Shanghai Jiao Tong University , Shanghai 200030 , China2) Shanghai Enhanced Lab of Ferrometallurgy , Shanghai University , Shanghai 200072 , China3) Institute of Aeronautical Materials , Beijing 100095 , China 4) Institute of Corrosion and Protection of Metals , The Chinese Academy of Sciences , Shenyang 110015 , ChinaManuscript received 18 October 1998

金属学报(英文版)

An investigation has been made on the tensile fracture behavior of oriented single crystal DD100 superalloy at 850. The appearance of the fracture surface of DD100 reflects the glide plane decohension fracture mechanism, which is different from the fracture of oriented DD100. The tensile strength ...

关键词: single crystal superalloy , null , null

THEORETICAL PREDICTION OF PROEUTECTOID FERRITIC TRANSFORMATION IN HYPO-PROEUTECTOID STRUCTRAL STEELS

H.B. Chang , Z.G. Li , T. Y. Hsu , Z. Y. Xu , and X. Y. Ruan (Department of Metallurgical Engineering , Shanghai Technical College of Metallurgy , Shanghai 200233 , China)(Department of Plasticity Technology , Shanghai Jiao Tong University , Shanghai 200030 , China)(Department of Materials Science , Shanghai Jiao Tong University , Shanghai 200030 , China)

金属学报(英文版)

Proeutectoid ferrite with carbon content xo precipitating from austenite in a multicomponent steel at temperature T is supposed to be equivalent to proeutectoid ferrite with the same carbon content precipitating from austenite in Fe-C binary system at temperature T'.is described as the temperature ...

关键词: proeutectoid ferrite formation temperature difference , null , null

THEORETICAL PREDICTION OF THE KINETICS CURVES OF PEARLITIC TRANSFORMATION IN HYPO-PROEUTECTOID STRUCTURAL STEELS

Z.G. Li , H.B. Chang , T. Y. Hsu , Z. Y. Xu , and X. Y. Ruan (Department of Plasticity of Technology , Shanghai Jiao Tong University , Shanghai 200030 , China)(Department of Metallurgical Engineering , Shanghai Technical College of Metallurgy , Shanghai 200233 , China)(Department of Materials Science , Shanghai Jiao Tong University , Shanghai 200030 , China)

金属学报(英文版)

Supposing carbon contents of ferrite phases in pearlite precipitating from austenite in multicomponent steel at temperature T and in Fe-C ystem at T' are the same the pearlite formation temperature diference, can be calculated from the FeX phase diagrams and the equilibrium temperature Al. Using Tp...

关键词: pearlite formation temperature difference , null , null

PREDICTION OF FLOW STRESS OF HIGH-SPEED STEEL DURING HOT DEFORMATION BY USING BP ARTIFICIAL NEURAL NETWORK

J. T. Liu , H.B. Chang , R.H. Wu , T. Y. Hsu(Xu Zuyao) and X.R. Ruan( 1)Department of Plasticity Technology , Shanghai Jiao Tong University , Shanghai 200030 , China 2)School of Materials Science and Engineering , Shanghai Jiao Tong University , Shanghai 200030 , China)

金属学报(英文版)

The hot deformation behavior of TI (18W-4Cr-1V) high-speed steel was investigated by means of continuous compression tests performed on Gleeble 1500 thermomechan- ical simulator in a wide range of tempemtures (950℃-1150℃) with strain rotes of 0.001s-1-10s-1 and true strains of 0-0. 7. The flow str...

关键词: T1 high-speed steel , null , null , null , null

STEADY-STATE CREEP OF UNIDIRECTIONAL C/C COMPOSITE WITH PYROLYTIC CARBON MATRIX

R.Shi , G.X.Hu , H.J.Li and M.K.Kang (The State Education Commission Open Research Laboratory for High Temperature Materials and Testing , Shanghai Jiao Tong University , Shanghai 200030 , China)(Department of Materials Science and Engineering , Northwestern Polytechnical University , Xi'an 710072 , China)

金属学报(英文版)

The steady-state creep behavior of unidirectional C/C(1-D-C/C) composite with pyrolytic carbon matrix was investigated at high temperatures up to 2160℃ and under tensile stress from 133.83 to 213.46MPa. Based on the creep experiment of single specimen method, the apparent activation energy and the s...

关键词: 1-D-C/C , null , null

Deformation and Dislocation Structure in L1_2 Titanium Trialuminide Alloys

Gengxiang HU , Shipu CHEN , Xiaohua WU , Yonghua RONG and Xiaofu CHEN(Dept. of Materials Science , Shanghai Jiao Tong University , Shanghai , 200030 , China)

材料科学技术（英文）

The deformation behaviour and the nature of dislocations of the Al3Ti-base L12 alloya modified with Fe and Mn etc, were investigated. The results show that the deformation and fracture character istics are closely related to the alloy compositions. The effect of hot-working process on the room tem p...

关键词:

ELEMENT SELECTION OF THREE-DIMENSIONAL NON-LINEAR FINITE ELEMENT ANALYSIS ON THE QUENCHING PROCESS OF THE COMPLEX-SHAPE WORKPIECE

Y.J. Li , J.S. Pan , M.J. Hu , D. Tian and W.M. Zhang Open Laboratory of the Educational Ministry for High Temperature Materials & Tests , Shanghai Jiao Tong University , Shanghai 200030 , China

金属学报(英文版)

When FEM is utilized to simulate the quenching process of the workpiece and realize the coupled calculation of the temperature field and phase transformation, due to the effect of the complex shape, non-linear physical parameters and the latent heat during phase transformation, the element selection...

关键词: FEM , null , null

ELECTROMAGNETIC FIELD REMOVE INCLUSIONS FROM ALUMINUM MELT IN ELECTROMAGNETIC FIELD

T.X. Li , Z.M. Xu , B.D. Sun , D. Shu and Y.H. Zhou (School of Materials Science and Engineering , Shanghai Jiao Tong University , Shanghai 200030 , China)

金属学报(英文版)

Electromagnetic separation of non-metallic inclusions from Al-Si melt is studied by theoretical analysis and experiments on self-designed electromagnetic separation apparatus. Metallographs and LECO Image Analysis System were used to analyze the content of alumina in aluminum alloy before and after...

关键词: aluminum melt , null , null , null

HYDRODYNAMIC SIMULATION TO MOLD FILLING UNDER COUNTER GRAVITY

J.M. Zeng and Y.H. Zhou 1) Institute of Materials Science , Guangxi University , Nanning 530004 , China 2) Department of Materials Science and Engineering , Shanghai Jiao Tong University , Shanghai 200030 , China

金属学报(英文版)

In situ observations of the flow morphology during mold filling under counter gravity are conducted on a perspex water model by means of flow visualization, high speed photography and pattern processing. The experimental results indicate that influences of the dynamic factors on flow morphology can ...

关键词: casting , null , null

RESEARCH ON MEASURING METHOD OF THE THERMAL CONDUCTIVITY FOR HIGHLY POROUS MATERIALS

J Y Wu , Z.M. Tang , W Shi andR.Z. Wang (Institute of Refrigeration and Cryogenics Engineering , Shanghai Jiao Tong University , Shanghai 200030 , China)

金属学报(英文版)

A transient method with rectangular pulse heating has been developed to measure the thermal conductivity of highly porous materials such as activated carbon, zeolite and silica gel. By this method the thermal conductivity can be measured quickly and accu-rately. In this paper, a set of automatically...

关键词: thermal conductivity , null , null

材料期刊网

HIGH TEMPERATURE TENSILE FRACTURE BEHAVIOR OF ORIENTED DD100 SINGLE CRYSTAL SUPERALLOY

THEORETICAL PREDICTION OF PROEUTECTOID FERRITIC TRANSFORMATION IN HYPO-PROEUTECTOID STRUCTRAL STEELS

THEORETICAL PREDICTION OF THE KINETICS CURVES OF PEARLITIC TRANSFORMATION IN HYPO-PROEUTECTOID STRUCTURAL STEELS

PREDICTION OF FLOW STRESS OF HIGH-SPEED STEEL DURING HOT DEFORMATION BY USING BP ARTIFICIAL NEURAL NETWORK

STEADY-STATE CREEP OF UNIDIRECTIONAL C/C COMPOSITE WITH PYROLYTIC CARBON MATRIX

Deformation and Dislocation Structure in L1_2 Titanium Trialuminide Alloys

ELEMENT SELECTION OF THREE-DIMENSIONAL NON-LINEAR FINITE ELEMENT ANALYSIS ON THE QUENCHING PROCESS OF THE COMPLEX-SHAPE WORKPIECE

ELECTROMAGNETIC FIELD REMOVE INCLUSIONS FROM ALUMINUM MELT IN ELECTROMAGNETIC FIELD

HYDRODYNAMIC SIMULATION TO MOLD FILLING UNDER COUNTER GRAVITY

RESEARCH ON MEASURING METHOD OF THE THERMAL CONDUCTIVITY FOR HIGHLY POROUS MATERIALS

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