JIAO Yuning
,
LIU Qingmin
,
YANG Yuangsheng
,
HU Zhuangqi
,
Institute of Meta] Research
,
Chinese Academy of Sciences
,
Shenyang
,
ChinaGAO Yunyan
,
JIA Guanglin
,
ZHANG Guozhi
,
QIAO YuanjunNortheast University
,
Shenyang
,
China Manuscript received 12 May
,
1994
金属学报(英文版)
Navier-Stokes equation and Lorentz force equation are used to calculate the fluid field of liquid metal of electromagnetic centrifugal casting (EMCC) in this paper. A field equation is given, which shows the azimuthal velocity closely relates to electrical conductivity, magnetic density, viscosity o...
关键词:
fluid field of liquid metal
,
null
BAL■ P
,
ACHIMOVI■OV M
,
SEPLAK VInstitute of Geotechnics of Slovak Academy of Sciences
,
Kosice
,
SlovakiaBASTLZJ.Heyrovsky Institute of Physical Chemistry
,
Academy of Sciences of the Czech Republic
,
Prague
,
C. R. LIPAKJSlovak Technical University
,
Electrotechnical Faculty
,
Bratislava
,
Slovakia Manuscript received 22 February
,
1994
金属学报(英文版)
The mechanical activation of tetrahedrite Cu_(12)Sb_(4)S_(13) was carried out in a planetary mill. The changes in the surface and bulk properties produced in mineral by mechanical activation were detected by infrared, photoelectron and Mossbauer spectroscopy. The rate and selectivity of tetrahedrite...
关键词:
mechanical activation
,
null
,
null
LI MeiyaShantou University
,
Shantou
,
Guangdong
,
ChinaCOWLAMNUniversity of Sheffield
,
Sheffield S3 7RH
,
UKCOCCOGUniversita di Sassari
,
via Vienna 2
,
07100 Sassari
,
Italy Manuscript received 10 May
,
1994
金属学报(英文版)
Small angle neutron scattering(SANS) technique has been used to investigate the Ni_(50)Mo_(50) system prepared by mechanical alloying(MA). Significant changes of the scattering intensity have been observed among the samples with different milling time.Interesting fractal-like behavior of the sample ...
关键词:
mechanical alloying
,
null
,
null
ZHANG Haifeng
,
LIJie
,
SONG Qihong
,
HU ZhuangqiInstitute of Metal Research
,
Chinese Academy of Sciences
,
Shenyang
,
ChinaLI WenShenyang Institute of Technology
,
Shenyang. China Manuscript received 26 April
,
1994
金属学报(英文版)
Amorphous Ni-Pd-Si ribbons were partially crystallized by relaxation treatment then secondary amorphous Ni-Pd-Si alloy powder prepared by mechanical milling. The surface states of amorphous and crystalline Ni-Pd-Si powders were studied by XRD, TEM, AES and ESCA spectra. The catalytic activities of a...
关键词:
Ni-Pd-Si alloy
,
null
,
null
PA N JinChangsha Institute of Technology
,
ChinaLI Jihong
,
NING Xiaoguang
,
YE HengqiangLab. of Atomic Imaging of Solids
,
Institute of Metal Research
,
Chinese Academy of Sciences. Shenyang
,
China Manuscript received 28 February
,
1994
金属学报(英文版)
A newly developed whisker K_(2)O 6TiO_(2) reinforced 6061 Al composite was prepared by squeeze casting process. The flexural strength of the composite is 518MPa, and decreases to 490 M Pa after T6 treatment.The hardness of the composite also shows the similar change while T6 treating. The results of...
关键词:
potassium titanate. whisker
,
null
,
null
GAO Ruwei
,
XIAO MingshanShandong University
,
Jinan
,
ChinaZHOU Shouzeng
,
LIFubiao
,
ZHANG LidongNational Laboratory
,
University of Science and Technology Beijing
,
China Manuscript received 11 April
,
1994
金属学报(英文版)
The effect of the orientation magnetic field on the permanent magnetism of Nd-Fe-B sintermagnets is investigated. The results show that the variation law of magnetism with orientation field obviously changes at the critical orientation field and the intensity of the orientation field should he deter...
关键词:
orientation magnetic field
,
null
,
null
,
null
GAO Wen and LI ChunzhiInstitute of Aeronautical Materials
,
Beijing
,
Beijing Laboratory of Electron Microscopy
,
Chinese Academy of Sciences
,
Beijing
,
China Manuscript received 11 April
,
1994
金属学报(英文版)
The mierostructure of an AuNiFeCrlnZr alloy has been studied by means of TEM,CBED. SEM and EDS. The results show that the alloy contains Au-rich solid solution, Ni-rich solid solution, and η- and -ωphases. The η-phase containing 90at%Cr possesses an orlhorhombic .structure with a = 0.448nm. b = 1.40...
关键词:
Au-base alloy
,
null
,
null
,
null
