Yh. Li et Cm. Sellars, COMPARATIVE INVESTIGATIONS OF INTERFACIAL HEAT-TRANSFER BEHAVIOR DURING HOT-FORGING AND ROLLING OF STEEL WITH OXIDE SCALE FORMATION, Journal of materials processing technology, 80-1, 1998, pp. 282-286
Citations number
8
Categorie Soggetti
Material Science","Engineering, Manufacturing","Engineering, Industrial
In this paper, the results of hot axisymmetric forging and flat rollin
g experiments using plain carbon steel with oxide formation conducted
under nearly identical conditions of initial temperature, specimen thi
ckness and surface quality, and deformation speed and reduction are pr
esented. Temperature measurements and computations indicate that, unde
r the approximately identical deformation conditions, the interfacial
heat transfer coefficients (IHTCs) from hot rolling are substantially
higher than those from hot forging. The thermal and physical mechanism
s governing these differences are analysed in terms of oxide scale def
ormation mode, metal flow pattern and contact status. (C) 1998 Elsevie
r Science S.A. All rights reserved.