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EFFECT OF MAGNETIC FIELD ON MARTENSITIC TRANSFORMATION IN Fe-21Ni-4Mn ALLOY

SUN Enxi Dalian Railway College , Dalian , ChinaYANG Dazhi Dalian University of Technology , Dalian , ChinaXU Zuyao (T.Y.Hsu) Shanghai Jiaotong University , Shanghai , ChinaYANG Fuming ZHAO Ruwen Institute of Physics , Academia Sinica , Beijing , China YANG Dazhi , Professor , Dalian University of Technology , Dalian 116024 , China

金属学报(英文版)

The pulsed magnetic field induced martensitic transformation with isothermal and athermal kinetics in Fe-2Ni-4Mn(wt-%)alloy has been studied by means of magnetization measurements,optical microscopy and thermodymical analyses.It is shown that there exits a critical magnetic intensity for induing mar...

关键词: magnetic field-induced martensitic transformation , 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

EFFECT OF NITROGEN ON MICROSTRUCTURE AND MECHANICAL PROPERTIES OF ALLOY HK50

YU Yongsi CAO Zhiben WANG Fugang , Dalian University of Technology , Dalian , ChinaGUO Xiaobing Jinzhou Institute of Technology , Jinzhou , China Associate Professor , Dept.of Materials Science , Dalian University of Technology , Dalian 116024 , China

金属学报(英文版)

The volume fraction of the lamellar carbide cell in HK50 alloy may be increased with the in- crease of nitrogen content over 0.065%.The habit plane of l(?)mellar carbide is {111}_γ.The distribution of nitrogen changes no more before or after the precipitation of lamellar structure. The diffusion act...

关键词: alloy HK50 , null , null , null

(α+β)Dual Phase CuZnAl Shape Memory Alloy

ZHAO Xu , QI Min , YANG Dazhi Institute of Metal Research , Academia Sinica , Shenyang , 110015 , China.Department of Materials Engineering , Dalian University of Technology , Dalian , 116012 , China.

材料科学技术（英文）

The effect of α phase on CuZnAl shape memo- ry alloy(SMA)has been systematically studied by electrical resistance method,quantitative measure- ment of micrography and transmission electron microscopy(TEM).It is found that,by controlling the amount of α phase in(α+β)-CuZnAl alloy, phase transformatio...

关键词: (α+β)-CuZnAl alloy , null , null

Relationship between Relaxation Internal Friction Peak at about 200℃(f≈1Hz)and Bainitic Transformation In a CuZnAl Alloy

ZHAO Zengqi CHEN Feixia YANG Dazhi BAO Er ** Physical Laboratory , Baotou Research Institute of Rare Earth , Baotou , 014010 , China*** Dept.of Materials Engineering , Dalian University of Technology , Dalian , 116024 , China**** Dept.of Materials Engineering , Yanshan Uni

材料科学技术（英文）

The present investigation showed that the re- laxation peak at about 200℃ (f≈1Hz) was related to bainitic transformation in a CuZnAl alloy.The peak decreased when bainite precipitated.The activation energy of the peak was the same as the apparent activation energy of bainitic transforma- tion.Accord...

关键词: internal friction , null , null , null

Influence of α Phase on Shape Memory Effect and Superelasticity of CuZnAI Alloy

QI Min ZHU Min ZHAO Xu YANG Dazhi ** Dept.of Materials Engineering , Dalian University of Technology , Dalian , 116023 , China*** Institute of Metals Research , Academia Sinica , Shenyang , 110015 , China+ To whom correspondence should be addressed

材料科学技术（英文）

The influence of a small amount of α phase in β′ matrix on shape memory effect and superelasticity of CuZnAl shape memory alloy has been studied systematically.It has been found that transformation temperature can be adjusted in a large scale by controlling the amount of α phase, meanwhile,shape mem...

关键词: αphase , null , null , null

GRAIN BOUNDARY FEATURE AND CREEP BEHAVIOR OF Fe-15Cr-25Ni ALLOYS

ZHANG Junshan CHEN Weixing CAO Zhiben Dalian University of Technology , Dalian , China Associate Professor , Department of Materials Engineering , Dalian University of Technology , Dalian , China

金属学报(英文版)

Creep behavior of Fe-15Cr-25Ni alloys with different grain boundary features has been in- vestigated at 850 and 950℃ and in stress range of 14.7～78.5 MPa.The single phase alloy exhibits typical recovery creep characteristics,and for the alloy in which M_(23)C_6 carbides densely precipitate at grain ...

关键词: grain boundary feature , null , null

A QUENCHING INDUCED PLANAR DEFECT OF MARTENSITE IN Cu-Zn-Al ALLOY

ZHU Min YANG Dazhi Dalian University of Technology , Dalian , China Lecturer , Dept.of Matedais Engineering , Dalian University of Technology , Dalian , China

金属学报(英文版)

A new kind of planar defect named non-basal plane stacking faults has been studied by using trace analysis and lattice image techniques.It has been found that they are located in (125)_M plane of martensite lattice.By lattice image observation,the non-basal plane stack- ing faults are argued to be i...

关键词: martensite , null , null

INFLUENCE OF RARE EARTH ON INTERGRANULAR CRACKING OF 9% Ni CAST STEEL

ZHANG Wei LI Longsheng CHENG Ji Dalian University of Technology , Dalian , China Lecturer , Dept.of Materials Engineering , Dalian University of Technology , Dalian 116023 , China

金属学报(英文版)

The intergranular cracking of 9% Ni cast steel seems mainly to relate to the segregation of contaminates H,S and P along boundaries.An addition of rare earth may eliminate the seg- regation of these contaminates along grain boundaries and improve the binding force among boundaries,so as to reduce re...

关键词: 9%Ni cast steel , null , null

Diffraction and Morphology Study of Surface Structures Accomponying with the Formation of α'Plate(Bainite)in a Cu-Zn-AI Alloy

ZHU Min AN Jiangying CHEN Feixia WANG Fengting YANG Dazhi ** Dept.of Materials Engineering , Dalian University of Technology , Dalian , 116023 , China+ To whom correspondence should be addressed

材料科学技术（英文）

In the present paper the morphologies of sur- face structures and the anomalous contrast of β_1 phase accompanying with the formation of bainite plate in the Cu-Zn-Al shape memory alloy have been investigated in detail by the transmission elec- tron microscopy and diffraction.The experimental result...

关键词: shape memory alloy , null , null

材料期刊网

EFFECT OF MAGNETIC FIELD ON MARTENSITIC TRANSFORMATION IN Fe-21Ni-4Mn ALLOY

Isothermal Aging Kinetics in CuZnAl Shape Memory Alloy

EFFECT OF NITROGEN ON MICROSTRUCTURE AND MECHANICAL PROPERTIES OF ALLOY HK50

(α+β)Dual Phase CuZnAl Shape Memory Alloy

Relationship between Relaxation Internal Friction Peak at about 200℃(f≈1Hz)and Bainitic Transformation In a CuZnAl Alloy

Influence of α Phase on Shape Memory Effect and Superelasticity of CuZnAI Alloy

GRAIN BOUNDARY FEATURE AND CREEP BEHAVIOR OF Fe-15Cr-25Ni ALLOYS

A QUENCHING INDUCED PLANAR DEFECT OF MARTENSITE IN Cu-Zn-Al ALLOY

INFLUENCE OF RARE EARTH ON INTERGRANULAR CRACKING OF 9% Ni CAST STEEL

Diffraction and Morphology Study of Surface Structures Accomponying with the Formation of α'Plate(Bainite)in a Cu-Zn-AI Alloy

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