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EVOLUTION OF CREEP-FATIGUE DAMAGE IN TYPE 304 STAINLESS STEEL AND ITS DETECTION BY ELECTRICAL POTENTIAL METHOD

N. Tada , T. Kitamura , R. Ohtani and E. Nakayama (Department of Engineering Physics and Mechanics , Graduate School of Engineering , Kyoto University , Yoshida-hommachi , Sakyo-ku , Kyoto , 606-8501 , Japan)

金属学报(英文版)

Creep-fatigue test was carried out using smooth round bar specimens of Type 304 stainless steel. Cavities and small cracks on the cross-section of the specimen were carefully observed by a scanning laser microscope. Moreover, direct current electrical potential method (DC-EPM) was applied in order t...

关键词: creep-fatigue , null , null , null , null

Microstructure and Mechanical Properties of Two-phase TiAl Alloys in Lamellar Form

Masaharu Yamaguchi and Haruyuki Inui(Department of Metal Science and Technology , Kyoto University , Sakyo-ku , Kyoto 606 , Japan)

材料科学技术（英文）

In two-phase TiAl alloys, the lamellar structures are of special interest and importance since they are so common and persistent. not only under as-cast conditions but also after thermal treatment. However. the lamellar structures are still poor in ductility,although they are beneficial for toughnes...

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EXPERIMENT AND SIMULATION FOR THICK-PLATE BENDING BY HIGH FREQUENCY INDUCTOR

S. Imatani , Y. Okuno and T. Inoue (Department of Energy Conversion Science , Kyoto University , Sakyo-ku , Kyoto 606-8501 , Japan)

金属学报(英文版)

In order to produce thick plates with complicated curved surface, a prototype bending machine by use of high frequency inductor is developed. The bending mechanism is based on the localized thermal stresses which are induced from the difference of temperature in thickness by the high frequency induc...

关键词: plate bending , null , null , null , null

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