SUN Baode
,
CHE Xiaozhou
,
LIN Dongliang
,
ZHOU Yaohe(Department of Materials Engineering
,
Shanghai Jiaotong University
,
Shanghai 20030
,
China)(Department of Materials Science
,
Shanghai Jiaotong University
,
Shanghai 200030
,
China)
金属学报(英文版)
The morphology and structure of melt spinning Ni-33.6at% Al doped with B and RE were investigated.The results show that the alloy consists of L10 martensitic grains and L12 Ni3Al at the grain boundaries when it contains no B and RE.The addition of 0.11-0.31wt% B can suppress the martensitic transfor...
关键词:
:NiAl
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null
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null
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null
JIN Nengyun Shanghai Jiaotong University Jin Nengyun
,
Department of Materials Science
,
Shanghai Jiaotong University
,
Shanghai 200030
,
China.Present address:Max-Planck-Institut für Metallforschung
,
Institut für Physik
,
7000 Stuttgart 80
,
FRG
金属学报(英文版)
A dislocation interaction model has been proposed for cyclic deformation of fcc crystals.Ac- cording to this model,cyclic stress-strain responses and saturation dislocation structures of a crystal are associated with the modes and intensities of dislocation interactions between slip systems active i...
关键词:
face centered cubic crystal
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null
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null
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null
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null
LIN Dongliang
,
(T.L.Lin)
,
CHEN Da Shanghai Jiaotong University
,
Shanghai
,
China Professor
,
Dept.of Materials Science
,
Shanghai Jiaotong University
,
Shanghai 200030
,
China
金属学报(英文版)
The deformation behaviours of Ni_3Al alloys with various chemical compositions and subjected to different heat treatments were in situ observed under SEM. Moreover,in situ observations of slip trace were supplemented by the direct observation of dislocation arrangements under TEM.In B-doped Ni_3Al a...
关键词:
Ni_3Al
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null
,
null
,
null
,
null
JIN Nengyun Shanghai Jiaotong University
,
Shanghai Jin Nengyun
,
Department of Materials Science
,
Shanghai Jiaotong University
,
Shanghai 200030
,
ChinaPresent address:Max-Planck-Institut für Metallforschung-Institut für Physik
,
Stuttgart 80
,
FRG
金属学报(英文版)
Cyclic stress-strain responses and dislocation structure of copper single crystals with various tensile axes were systematically studied and compared with each other.Experimental results reveal that the evolution of microscopic dislocation configurations in a crystal and, accordingly,its macroscopic...
关键词:
Copper
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null
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null
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null
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null
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null
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null
SUN Jian LIN Dongliang Shanghai Jiaotong University
,
Shanghai
,
China LIN Dongliang
,
professor
,
Department of Materials Science
,
Shanghai Jiaotong University
,
Shanghai 200030
,
China
金属学报(英文版)
Equilibrium equation of point defects in Ll_2 type intermetallic compounds was established to calculate the relations of the concentration of antisite defects and vacancies and bulk composi- tion in Ni_3Al.The examination of temperature effects on the point defects cleared up the mis. understanding ...
关键词:
intermetallic compound
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null
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null
,
null
W.M. Zhang
,
M.J. Hu
,
Y.J. Li
,
J.S. Pan and X. Chen( 1) Open Lab. of the Educational Ministry for High Temperature Material and Test
,
Shanghai Jiaotong University
,
Shanghai 200030
,
China 2) Oregen Graduate Institute of Science and Technology
,
USA)
金属学报(英文版)
According to computer numerical simulation for measuring atmosphere carbon potential by electric resistance method (hot-wire method) and the experimental data, the paper point out that the measuring result dose not directly reflect the atmosphere carbon potential (Cg) but the average carbon conten...
关键词:
electric resistance method
,
null
,
null
LIN Dongliang
,
(T.L.Lin)
,
CHEN Da Shanghai Jiaotong University
,
Shanghai
,
China Professor
,
Dept.of Materials Science
,
Shanghai Jiaotong University
,
Shanghai 200030
,
China
金属学报(英文版)
The embedded atom type potentials and static relaxation method combined with steepest gra- dient computational technique have been used to simulate the grain boundary cohesive ener- gies,the distribution of electron density and stress field in the grain boundary,region,and oth- er related problems o...
关键词:
Ni_3Al
,
null
,
null
,
null
SUN Jian ZHANG Yuanhu HU Gengxiang Shanghai Jiaotong University
,
Shanghai
,
China SUN Jian
,
lecturer
,
Department of Materials Science
,
Shanghai Jiaotong University
,
Shanghai 200030
,
China
金属学报(英文版)
The creep crack propagation in superalloy René80 of two different microstructures,i.e., equiaxed grain structure by conventional casting and columnar grain by directional solidification,was investigated under static load at 1123 K.The creep crack growth rate, da/dt,seems to be correlated with the st...
关键词:
Superalloy René 80
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null
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null
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null
LIN Junshan
,
LI Pengxing
,
WU Renjie Shanghai Jiao Tong University
,
Shanghai
,
China postdoctoral
,
Institute of Composite Materials
,
Shanghai Jiaotong University
,
Shanghai 200030
,
China
金属学报(英文版)
The differential scanning calorimetric(DSC) and transmission electron microanalysis (TEM) techniques were used to study the kinetic process of precipitation in matrix of cast SiC_p/2024 composites.The results showed that precipitation reactions of GP zone and intermediate phase S'(Al_2CuMg)in the co...
关键词:
SiC_p/2024 composite
,
null
,
null
PAN Mu XU Zuyao (T.Y.Hsu) Shanghai Jiaotong University
,
Shanghai
,
China XU Zuy(T.Y.Hsu)
,
Professor
,
Dept.of Materials Science
,
Shanghai Jiaotong University
,
Huashan Road
,
Shanghai 200030
,
China
金属学报(英文版)
The M_s temperature and the yield strength of austenite at M_s temperature have been meas- ured for five Fe-Mn-C alloys.The experimental results show that there is a linear relation- ship between them.The effect of the solution strengthening of austenite on martensite morphology is also studied.It i...
关键词:
Fe-Mn-C alloy
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null
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null
