The effect of severe plastic deformation on precipitation in supersaturated Al-Sn-Mg alloys. (2007)
Gubicza, J., Schiller, I., Chinh, N.Q., Illy, J., Horita, Z., Langdon, T.G.
Influence of crystal orientation on the processing of copper single crystals by ECAP (2007)
Fukuda, P., Furukawa, M., Oh-ishi, K., Horita, Z., Langdon, T.G.
Single crystals of high-purity copper, having two different orientations, were pressed through one pass in equal-channel angular pressing (ECAP) at room temperature and then examined using several...
A finite element analysis of the superplastic forming of an aluminum alloy processed by ECAP (2007)
O'Brien, M.J., Von Bremen, H.F., Furukawa, M., Horita, Z., Langdon, T.G.
Grain refinement of high-purity FCC metals using ECAP (2007)
Horita, Z., Kishikawa, K., Kimura, K., Tatsumi, K., Langdon, T.G.
Microstructural evolution in the processing of bulk samples using high-pressure torsion (2007)
Although high-pressure torsion (HPT) is now a well-established technique for imposing severe plastic deformation on metallic materials, the technique is generally restricted to use with thin disk...
Mechanical properties of a spray-cast aluminum alloy processed by severe plastic deformation (2007)
Xu, C., Kawasaki, M., Furukawa, M., Horita, Z., Langdon, T.G
Experiments were conducted to evaluate the mechanical properties of a spray-cast Al7034 alloy processed by severe plastic deformation. The alloy was received with an average grain size of ~2.1 ﾵm...
Zhao, Y.H., Horita, Z., Langdon, T.G., Zhu, Y.T.
Samples of pure Cu, bronze (Cu–10 wt.% Zn) and brass (Cu–30 wt.% Zn) with stacking fault energies (SFE) of 78, 35, and 14 mJ/m2, respectively, were processed by high-pressure torsion (HPT) and by...
Exceptional superplasticity in an AZ61 magnesium alloy processed by extrusion and ECAP (2006)
Miyahara, Y., Horita, Z., Langdon, T.G.
Experiments were conducted on a commercial AZ61 alloy to evaluate the potential for achieving an ultrafine grain size and superplastic ductilities through the use of the EX-ECAP two-step processing...
Zhao, Y.H., Zhu, Y.T., Liao, X.Z., Horita, Z., Langdon, T.G.
Bulk ultrafine grained (UFG) materials produced by severe plastic deformation often have low ductility. Here the authors report that simultaneous increases in ductility and strength can be achieved...
Ungár, T., Balogh, L., Zhu, Y.T., Xu, C., Ribárik, G., Horita, Z, ...
Precipitation behavior in age-hardenable alloys after severe plastic deformation (2006)
Horita, Z., Fujita, T., Kaneko, K., Langdon, T.G.
In this study, equal-channel angular pressing (ECAP) is conducted on age-hardenable Al-based alloys and the precipitation behavior is examined in association with the subsequent aging process. The...
Equal-channel angular pressing as a production tool for superplastic materials (2001)
Horita, Z., Lee, S., Ota, S., Neishi, K., Langdon, T.G.
Equal-channel angular pressing (ECAP) was applied for grain refinement of Al-3%Mg0.2%Fe and Al-3%Mg-0.2%Ti alloys and also for a commercial Al 2024 alloy. The grain sizes of the alloys were reduced...
Furukawa, M., Utsunomiya, A., Komura, S., Horita, Z., Nemoto, M., Langdon, T.G.
Ultrafine grain sizes may be achieved in materials subjected to severe plastic deformation through processing procedures such as equal-channel angular pressing (ECAP). Experiments were conducted to...
The principles of processing using severe plastic deformation: Application to aluminum alloys (2001)
Development of fine grained structures using severe plastic deformation (2000)
Horita, Z., Furukawa, M., Nemoto, M., Langdon, T.G.
Severe plastic deformation provides a processing tool for introducing fine grain sizes into polycrystalline materials. This paper describes the principles of equal channel angular pressing (ECAP) in...
Achieving superplasticity at high strain rates using equal channel angular pressing (2000)
Furukawa, M., Horita, Z., Nemoto, M., Langdon, T.G.
Equal channel angular pressing (ECAP) is a processing procedure in which a sample is pressed through a die containing a channel bent into an L shaped configuration. This procedure introduces a high...
Influence of scandium on superplastic ductilities in an Al-Mg-Sc alloy (2000)
Komura, S., Horita, Z., Furukawa, M., Nemoto, M., Langdon, T.G.
Ultrafine grain sizes, of the order of approximately 0.2 μm, may be introduced into Al-Mg-Sc alloys by subjecting the material to severe plastic deformation through the process of equal-channel...
Superplastic forming at high strain rates after severe plastic deformation (2000)
Horita, Z., Furukawa, M., Nemoto, M., Barnes, A.J., Langdon, T.G.
An Al-3% Mg-0.2% Sc alloy was fabricated by casting and subjected to severe plastic deformation through equal-channel angular pressing to a strain of ~8. The grain size after pressing was ~0.2 μm...
Yamashita, A., Yamaguchi, D., Horita, Z., Langdon, T.G.
Experiments were conducted to evaluate the influence of the pressing temperature when materials are processed by equal-channel angular pressing. The tests were conducted using samples of pure Al, an...
Nakashima, K., Horita, Z., Nemoto, M., Langdon, T.G.
A multi-pass facility was fabricated for equal-channel angular (ECA) pressing which gave a total strain of approximately 5 on a single passage through the die. Experiments on high purity aluminum...
Horita, Z., Fujinami, T., Nemoto, M., Langdon, T.G.
Using equal-channel angular (ECA) pressing at room temperature, the grain sizes of six different commercial aluminum-based alloys (1100, 2024, 3004, 5083, 6061, and 7075) were reduced to within the...
Factors affecting grain refinement in equal-channel angular pressing (2000)
Yamaguchi, D., Horita, Z., Fujinami, T., Nemoto, M., Langdon, T.G.
An examination of the deformation process in equal-channel angular pressing. (2000)
Berbon, P.B., Furukawa, M., Horita, Z., Nemoto, M., Langdon, T.G.
Fujita, T., Komura, S., Horita, Z., Langdon, T.G.
This paper describes grain refinement of an Al-3%Mg-0.2%Sc alloy using the equal-channel angular pressing(ECAP) technique at room temperature. It is shown that a grain size of 0.2.MU.m is obtained...