ZHANG Rong
,
ZHOU Lubin
,
Northwestern Polytechnical University
,
Xi'an
,
ChinaZHENG Wenlong
,
HUA Huizhong
,
Shanghai Research Institute of Materials
,
Shanghai
,
China ZHANG Rong
,
Lecturer
,
Department of Applied Physics
,
Northwestern Polytechnical University
,
Xi'an 710072
,
China
金属学报(英文版)
The behaviour towards corrosion fatigue of low carbon bainite steel with various microstructures after tempered at different temperatures has been examined. The susceptibility of the steel to corrosion fatigue may be improved by tempering at 300℃.
关键词:
corrosion fatigue
,
null
,
null
,
null
ZHENG Ling
,
Chongqing Institute of Communications
,
Chongqing
,
ChinaZOU Zhirong
,
LIU Jianglong
,
Chongqing University
,
Chongqing
,
China ZHENG Ling
,
Lecturer
,
Department of Mechanical Engineering
,
Chongqing Institute of Communications
,
Chongqing 630074
,
China
金属学报(英文版)
An explanation of the redistribution of impurity atoms such as Al, Si, Mn and Cu in pure nickel during low speed laser melting is made by one-dimensional analysis model for heat transfer. The solid-liquid interface solute redistribution seems to be the principal cause that makes the impurity atoms redistribute in the depth direction. The diffusion of impurity atoms from low to high temperature zones and their surface selective evaporation are believed to be noticeably contributed to the redistribution.
关键词:
Ni
,
null
,
null
,
null
HUANG Kelong
,
SHU Wanyin
,
DING Dunhuang
,
LIU Guogen
,
DONG Ping
,
Central South University of Technology
,
Changsha
,
China HUANG Kelong
,
Lecturer
,
Department of Chemistry
,
Central South University of Technology
,
Changsha 410083
,
China
金属学报(英文版)
In order to clarify the mechanism and the complex formed in the extraction of divalent Mn by alkylphosphonic acid monoester, the solid complex has been prepared by mono (2-ethylhexyl)-2-ethylhexyl phosphate, HEH(EH)P, HA with divalent Mn. The elemental analysis, magnetic susceptibility and thermogravimetry have been determined for the solid complex of HEH(EH)P-Mn(II) and the infrared spectrum has been carried out in comparison to the extractant HEH(EH)P. The extracted compound has also been studied by electronic and electron spin resonance spectroscopy in octane solvent and solid state at room temperature. On the basis of the measurements, it is concluded that the structure of the solid polymeric species MnA_2 is in a tetrahedral arrangement.
关键词:
solvent extraction mono (2-ethylhexyl)-2-ethylhexyl phosphate
,
null
,
null
