LIU Huanming The Steel Works No.2
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Benxi Iron and Steel Company
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Benxi
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ChinaYANG Zupan TIAN Yanwen Northeast University of Technology
,
Shenyang
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China LIU Huanming
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Engineer
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The Laboratory of Steel Works No.2
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Benxi Iron and Steel Company
,
Benxi
,
Liaoning
,
China
金属学报(英文版)
The interaction coefficients of Ca.Ti and Mg in the dilute Sn-based solution have been de- termined at 1500℃.Experimental measurements were taken by equilibrating the slag-alloy systems with metallic Sn as flux and graphite as reducing agent under Ar atmosphere mixed with different portion of CO.It was found that a considerable error may produce if the coefficients of ε_(Ca)~(Ca),ε_(Mg)~(Mg)and ε_(Ti)~(Ti)in the molten Sn were neglected when the activities of the components CaO,MgO and TiO_2 in the slags were estimated by this method.
关键词:
Sn
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null
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null
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null
LIU Huanming DU Hong Benxi Iron and Steel Company
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Benxi
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ChinaYANG Zupan Northeast University of Technology
,
Shenyang
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ChinaLI Guodong DU Kun Centrel Iron and Steel Research Institute
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Ministry of Metallurgical Industry
,
Beijing
,
China
金属学报(英文版)
Activity of TiO_2 in the molten blast furnace slag containing TiO_2 has been examined at 1500℃ by means of “molten slag-Sn” chemical equilibrium method,using metallic Sn as flux and graphite as deoxidizer,together with phase diagram caIculation.In the pentary slag system CaO-MgO-SiO_2-TiO_2-Al_2O_3,a_(TiO_2)=0.01—0.05 or 0.02—0.10 with pure liquid or solid TiO_2 as standard state,respectively.The activity and activity coefficient of TiO_2 in relation to concentration of TiO_2 have been discussed.
关键词:
TiO_2
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null
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null
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null
Zhenyu LIU Wei WANG Guodong WANG Qiang ZHANG Northeast University of Technology
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Shenyang
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110006
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ChinaDongqing MA Guoliang WU Jingshan LI Benxi Iron and Steel Company
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Benxi
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117000
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China
材料科学技术（英文）
In the present paper,the two-dimensional comprehensive model,which integrates the temperature model developed by the authors using finite difference methods and microstructural evolution model,has been developed.By using different microstructural evolution equations developed by Sellars,Senuma et al.and Easka et al.,the comparison studies have been made,which present that (1) the calculated γ-grain sizes show good agreements with the measured;(2) these equations show consistencies at the end of finishing stands.
关键词:
computer simulation
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null
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null
DU Linxiu
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ZHANG Zhongping
,
TIAN Yuwei
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LIU Xianghua
,
WANG Guodong
钢铁研究学报(英文版)
gy Center, Benxi Steel Group, Benxi 117000, Liaoning, China)
Abstract： The fatigue properties of 400 MPa grade supersteel, plain low carbon steel SS400 and microalloyed steel Q340TM were investigated through tensilecompression fatigue experiment with R=-1. The results indicate that the fatigue limit of the 400 MPa supersteel is higher than that of SS400 steel and close to that of the 340TM steel. According to the analysis of fatigue fracture, the fatigue striations of supersteel SS400 is thinner than that of SS400 steel and 340TM steel, and grain refinement can increase the fatigue limit.
关键词:
supersteel;grain refinement;fatigue property
