Effect of roll speed ratio on deformation characteristics of IF steel subjected to differential speed rolling

Title
Effect of roll speed ratio on deformation characteristics of IF steel subjected to differential speed rolling
Author(s)
고영건조단수하르토이재식박병호[박병호]신동혁[신동혁]
Keywords
FERRITIC STAINLESS-STEEL; MECHANICAL-PROPERTIES; ALLOY SHEET; MG-3AL-1ZN ALLOY; TEXTURE; MICROSTRUCTURE; EVOLUTION; ALUMINUM; FRICTION; BEHAVIOR
Issue Date
201305
Publisher
KOREAN INST METALS MATERIALS
Citation
METALS AND MATERIALS INTERNATIONAL, v.19, no.3, pp.603 - 609
Abstract
The paper investigates the effect of the roll speed ratio on the deformation characteristics of interstitial free (IF) steel processed by the differential speed rolling (DSR) technique. An intense plastic strain induced by a single DSR with various roll speed ratios ranging from 1:1 to 1:4 for the lower and upper rolls was successfully imparted to the samples, resulting in the formation of fine elongated ferrite grains as the roll speed ratio increased. Observations of the preferred orientation using electron back-scattered diffraction and transmission electron microscopy revealed that the {110} slip was readily activated as the dominant deformation mode in order to accommodate the intense plastic strain imposed by the DSR. In addition, the microhardness values of the IF steel sample deformed via DSR under a roll speed ratio of 1:4 increased, and this is discussed on basis of the frictional force between the roll and the sample during DSR deformation.
URI
http://hdl.handle.net/YU.REPOSITORY/25929http://dx.doi.org/10.1007/s12540-013-3033-7
ISSN
1598-9623
Appears in Collections:
공과대학 > 신소재공학부 > Articles
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