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The shearing characteristics associated with equal-channel angular pressing
Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing, 1998Equal-channel angular (ECA) pressing is a processing method for introducing an ultra-fine grain size into a material. In practice, it is a procedure that may be used to achieve high total strains by subjecting a sample to repetitive pressings. There is experimental evidence showing that the nature of the microstructural evolution in ECA pressing ...
Zenji Horita +2 more
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Multi Equal Channel Angular Pressing with Rotational Dies
Materials Science Forum, 2003 The recent successful development of the equal channel angular pressing (ECAP) process in metals provides a feasible solution to produce ultra-fine or nano-grained bulk: materials with tailored material properties. However, ECAP is difficult to scale up commercially due to excessive load requirements.
Y.H. Kim +3 more
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Equal-channel angular pressing using plate samples
Materials Science and Engineering: A, 2003 Equal-channel angular pressing (ECAP) was applied to plate samples of high-purity aluminum using processing route BCZ in which the plate is rotated by 90° in the same sense about the Z-axis between each pass. Samples were taken to a total of 4 passes, equivalent to an imposed strain of ~4, and then examined microscopically. In the as-pressed condition,
Kamachi, Masakazu +3 more
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Equal channel angular pressing of magnesium alloy AZ31
Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing, 2005Abstract Equal channel angular pressing (ECAP) was applied to a wrought magnesium alloy AZ31 for up to 8 passes at temperatures as low as 100 °C. The application of a back pressure was critical in deforming Mg alloys at lower temperatures. Room temperature mechanical properties were obtained by tensile and hardness tests. With increasing ECAP strain,
Kenong Xia, J T Wang
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Incremental method of equal-channel angular pressing (ECAP)
, 2009 This article covers the incremental method of equal-channel angular pressing.
Olejnik, L., Rosochowski, A.
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Effect of equal channel angular pressing on aging treatment of Al-7075 alloy
Progress in Natural Science: Materials International, 2015 The effect of aging treatment on microstructure and mechanical properties of equal channel angular pressed Al-7075 alloy was examined. Commercial Al-7075 alloy in the solid solution heat-treated condition was processed by equal channel angular pressing ...
M H Shaeri, M T Salehi
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Downscaling Equal Channel Angular Pressing
Solid State Phenomena, 2006ECAP (equal channel angular pressing) is a well-known severe plastic deformation method used to produce ultra-fine grained materials. The dimensions of ECAP specimens are usually in the centimeter range. For producing high strength wires or fibres with diameter in the micrometer/millimeter range, downscaling of the ECAP process may be a viable option ...
Aikaterini Zi +4 more
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Obtaining a Nanostructure in Titanium by Equal-Channel Angular Pressing
Metal Science and Heat Treatment, 20001. We have developed a technological setup for isothermal equal-channel angular pressing (ECAP) for hard-to-deform materials that serve at up to 500°C and specific loads on the punch of up to 2000 MPa.
G. I. Raab, R. Z. Valiev
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Equal channel angular pressing with converging billets—Experiment
Materials Science and Engineering: A, 2013A new concept of equal channel angular pressing (ECAP) with converging billets is proposed and tested experimentally. In its basic configuration, the new ECAP process uses two equal square input channels converging into a single output channel, which is twice as wide as the input channels so that it can accept two converging billets.
Rosochowski, Andrzej +4 more
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A modified die for equal channel angular pressing
Journal of Materials Processing Technology, 2009Abstract Tensile stress occurs in the vicinity of upper surface of the specimen in the severe plastic deformation zone, which increases the cracking and fracture tendency of the specimen and impedes the further ECAP processing. In this paper, the conventional ECAP die (Ψ = 16° and Φ = 90°) was modified to eliminate the tensile stress and enhance the ...
Shunqi Wang +4 more
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