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GRAIN COARSENING BEHAVIOR OF V-Ti-N MICROALLOYED STEELS

TANG Guoyi ZHENG Yangzeng Yanshan University , Qinhuangdao , ChinaCAI Qigong , ZHU Jing Central Iron and Steel Research Institute , Ministry of Metallurgical Industry , Beijing , China TANG Guoyi , Dept.of Graduates , Central Iron and Steel Research Institute , Ministry of Metallurgical Industry , Beijing 100081 , China

金属学报(英文版)

The effects of chemical composition and cooling rate after solidication on the grain coarsening temperature,T_(GC),of the V-Ti-N microalloyed steels have been investigated.It is shown that the T_(GC) may be obviously raised by adding even a little Ti to the base steel so as to pre- cipitate a great ...

关键词: microalloyed steel , null , null

Isothermal Aging Kinetics in CuZnAl Shape Memory Alloy

Zengqi ZHAO Lab.of Physics , Baotou Research Institute of Rare Earth , Baotou , 014010 , ChinaFeixia CHEN Dazhi YANG Dept.of Mater.Eng. , Dalian University of Technology , Dalian , 116024 , ChinaEr BAO Dept.of Mater.Eng. , Yanshan University , Qinhuangdao , 066004 , China

材料科学技术（英文）

Isothermal aging behaviours of a CuZnAl shape memory alloy have been investigated by means of dilatometry.The length of the specimens during isothermal aging from 190 to 280℃ increases with the aging time at each temperature.The isothermal aging kinetics fits in Avrami equation and the time exponent...

关键词: isothermal aging kinetics , null , null , null , null

MISCIBLE PRECIPITATES IN V-Ti-N MICROALLOYED STEELS

TANG Guoyi ZHENG Yangzeng Yanshan University , Qinhuangdao , ChinaCAI Qigong ZHU Jing Central Iron and Steel Research Institute , Beijing , China ZHENG Yangzeng Professor , Department of Material Engineering , Yanshan University , Qinhuangdao , China

金属学报(英文版)

The characteristics and the formation of the miscible particles in V-Ti-N microalloyed steels were studied.It was found that the vanadium to form V-Ti miscible particles starts to precipi- tate after pouring and cooling to temperature below 11 50℃ by means of the epitaxial precipi- tation on the pre...

关键词: microalloyed steel , null , null

CORROSION FAILURE ANALYSIS OF FLAME SPRAYED Zn-A115 COATING IN SEA WATER

LIN Chengfu WEN Lishi QIAN Shengwei Institute of Metal Research , Academia Sinica , Shenyang , ChinaKANG Datao Yanshan University , Qinhuangdao , China LIN Chengfu , Institute of Metal Research , Academia Sinica , Shenyang 110015 , China

金属学报(英文版)

The morphology,microstructure,chemical composition and electrochemical behavior of the flame sprayed Zn-Al15 coating after corrosion test in sea water have been investigated.The results show that the selective dissolution of the laminar euteetic structure of the Zn-AI15 coating is the fundamental ca...

关键词: flame sprayed coating , null , null , null

Effect of Ni on Sintering Characteristics of Short Cast Iron Fibre

LI Dongchun TIAN Yongjun CHEN Shizhen YU Dongli HE Julong ** Yanshan University , Qinhuangdao , 066004 , China+ To whom correspondence should be addressed

材料科学技术（英文）

Nickel,as the carrier through which Fe atoms diffuse,obviously enhances the densification of sintered compact containing short cast iron fibre. When Ni content is above 4.5 wt-% there are some austenites in microstructure at room temperature, discontinuous cementite networks at the interfaces betwee...

关键词: short metal fibre , null , null

BEHAVIOR OF FINE V-Ti COMPLEX CARBONITRIDE IN STEEL 09MnVTiN DURING REHEATING

TANG Guoyi ZHENG Yangzeng Yanshan University , Qinhuangdao , China ZHU Jing CAI Qigong Central Iron and Steel Research Institute , Ministry of Metallurgical Industry , Beijing , China

金属学报(英文版)

An investigation was carried out of the morphology and microstructure of V-Ti complex carbonitride in steel 09MnVTiN during reheating under analytical electron microscope.The prior V-rich ellipsoid V-Ti complex carbonitride particles are replaced progressively by Ti-rich cubic ones as the reheating ...

关键词: steel 09MnVTiN , null , null , null

Transverse Distributions of Front and Back Tension Stresses in Cold Strip Rolling

LIU Hongmin LIAN Jiachuang ** Yanshan University , Qinhuangdao , Hebei Province , 066004 , China+ To whom correspondence should be addressed

材料科学技术（英文）

In this paper,such a new lateral displacement function is proposed that the lateral flow velocity is con- tinuous at the entry and the exit of deformation zone.A new kind of finite strip method—the third power B-spline finite strip method—is put forward to simulate strip rolling process.Front and ba...

关键词: cold strip rolling , null , null , null

EFFECT OF HETEROGENEOUS DISTRIBUTION OF C AND ALLOYING ELEMENTS ON γ/α′ TRANSFORMATION IN A Fe-Mn-Cr-C ALLOY

ZHENG Yangzeng ZHANG Fucheng Yanshan University , Qinhuangdao , China

金属学报(英文版)

The heterogeneous distribution of C and metallic alloying elements as well as the phase com- position changes before and after cold deformation of an Fe-Mn-Cr-C alloy have been stu- died by the use of Mssbauer spectroscopy.The austenites without and with C and metallic alloying elements are found in...

关键词: heterogeneity , null , null , null , null

材料期刊网

GRAIN COARSENING BEHAVIOR OF V-Ti-N MICROALLOYED STEELS

Isothermal Aging Kinetics in CuZnAl Shape Memory Alloy

MISCIBLE PRECIPITATES IN V-Ti-N MICROALLOYED STEELS

CORROSION FAILURE ANALYSIS OF FLAME SPRAYED Zn-A115 COATING IN SEA WATER

Effect of Ni on Sintering Characteristics of Short Cast Iron Fibre

BEHAVIOR OF FINE V-Ti COMPLEX CARBONITRIDE IN STEEL 09MnVTiN DURING REHEATING

Transverse Distributions of Front and Back Tension Stresses in Cold Strip Rolling

EFFECT OF HETEROGENEOUS DISTRIBUTION OF C AND ALLOYING ELEMENTS ON γ/α′ TRANSFORMATION IN A Fe-Mn-Cr-C ALLOY

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