Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Seng Ho Yu"'
Publikováno v:
Materials Science and Engineering: A. 479:285-292
Commercial vanadium of 99.8% purity was extensively grain-refined by application of equal channel angular pressing at 350 °C. A total of eight passes via route B C reduced the grain size from 100 μm to 200 nm. In the as-deformed state, the microstr
Publikováno v:
Metallurgical and Materials Transactions A. 38:2805-2814
Commercial purity zirconium (Zr702) was deformed by equal channel angular (ECA) pressing up to eight passes, and the resulting microstructure and texture were studied by electron backscattered diffraction, transmission electron microscopy (TEM), and
Publikováno v:
Key Engineering Materials. :61-64
To study the effect of grain size on texture and tensile properties of equal channel angular pressed commercially pure Ti, specimens were made to have the grain size ranging from 4 m to 60 m with the severe plastic deformation followed by recrystalli
Microstructure and Texture of Zirconium and Titanium Grain Refined by Equal Channel Angular Pressing
Publikováno v:
Materials Science Forum. :86-91
Zr702 and commercial purity Ti were grain refined through severe plastic deformation and their microstructure and texture characteristics were studied by optical microscopy, transmission electron microscopy, X-ray diffraction and electron back-scatte
Publikováno v:
Materials Science Forum. :533-538
The commercial purity zirconium (Zr702) has been deformed by Equal Channel Angular Press (ECAP) up to eight passes using route A and BC. The deformation microstructure and the bulk texture have been characterized by Electron Backscattered Diffraction
Autor:
Yuriy Perlovich, [No Value] Fesenko, M. Grekhov, Margarita Isaenkova, Dong Hyuk Shin, Sun Keun Hwang, Seng Ho Yu
Publikováno v:
Materials Science Forum. :859-864
A detailed X-ray study of Zr rods, subjected to ECAP at 350oC by routes C and BC, was conducted by the new X-ray method of Generalized Pole Figures, combining texture measurement with registration of X-ray line profiles. The data analysis is based on
Publikováno v:
Materials Science and Engineering: A. 398:209-219
The evolution of microstructure and texture during cold rolling of commercial-purity titanium (CP-Ti) was studied with particular reference to deformation twinning and dislocation slip. For low to intermediate deformation up to 40% in thickness reduc
Autor:
Myoung Ho Kim, D. H. Shin, Young Bum Chun, W Q Cao, Seng Ho Yu, Sun-Kuen Hwang, S.I. Kwun, Soon W Chae
Publikováno v:
Metals and Materials International. 11:101-111
Evolution characteristics of the microstructure and texture of severely deformed commercial purity Zr702 were studied. The mode of the severe deformation was either heavy cold rolling or equal channel angular (ECA) pressing. Equiaxed grains, present
Autor:
Seng-Ho Yu, Sun-Kuen Hwang, Yeon-Chuol Yoo, Chong Moo Lee, Young Bum Chun, Wenquan Cao, D. H. Shin
Publikováno v:
Materials Science and Engineering: A. 395:77-86
A commercial-purity Zr702 was grain-refined from 20 μm to 0.2–0.5 μm by equal channel angular pressing. Grain refinement was most evident in the first pass but was insignificant during the subsequent passes. Two microstructural characteristics ev
Publikováno v:
Philosophical Magazine. 85:345-371
The evolution of the grain boundary character distribution (GBCD) of severely deformed commercial purity Zr was studied by experiment as well as computer simulation. The severe plastic deformation was performed by equal channel angular pressing (ECAP