Deformation processing of advanced materials. 2. Isothermal forging of titanium alloys and Ni-base superalloys.
نویسندگان
چکیده
منابع مشابه
Mechanisms of creep deformation in polycrystalline Ni-base disk superalloys
Mechanisms of creep deformation in polycrystalline Ni-base disk superalloys R.R. Unocic a,∗, G.B. Viswanathan a, P.M. Sarosi a, S. Karthikeyan b, J. Li a, M.J. Mills a a Department of Materials Science and Engineering, The Ohio State University, 477 Watts Hall, 2041 College Road, Columbus, OH 43210, USA b Department of Materials Engineering, Indian Institute of Science Bangalore, Karnataka 5600...
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This paper presents results from a research initiative aimed at investigating high temperature creep deformation mechanisms in Ni-base superalloys through a combination of creep experiments, TEM deformation mechanism characterization, and state of the art modeling techniques. The effect of microstructure on dictating creep rate controlling deformation mechanisms was revealed for specimens with ...
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This paper focuses on the fabrication of as-forged Ti46.5Al2Cr1.8Nb-(W, B) alloy via pulse current auxiliary isothermal forging (PCIF). The starting material composed of near gamma (NG) microstructure was fabricated by adopting pre-alloyed powders via hot pressing sintering (HPS) at 1300 °C. Isothermal compression tests were conducted at a strain rate range of 0.001-0.1 s-1 and a temperature ra...
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Novel techniques for characterizing and assessing the properties of Ni-base superalloys are becoming increasingly important to the accelerated development of new structural alloys and the advancement of physics-based mechanical property models. Instrumented indentation techniques have long served as a useful approach for probing the mechanical response of a wide range of engineering materials. ...
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Damage and plastic deformation accumulation in fretting fatigue occurs within a depth of a few crystallographic grains. Therefore, more accurate assumptions concerning length scale, damage volume, and the material model are needed to establish a more solid physical foundation necessary for next generation fretting fatigue damage prediction. Major thrusts include: (1) development and implementat...
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ژورنال
عنوان ژورنال: Journal of the Society of Materials Science, Japan
سال: 1989
ISSN: 1880-7488,0514-5163
DOI: 10.2472/jsms.38.1108