Study of fractional softening in multi-stage hot deformation
In this paper, the softening behaviour of a medium-carbon steel under hot working conditions in multi-stage compression is presented. Continuous and interrupted compression tests were performed in the temperature range 800–1100 degrees Celsius at strain rates of 0.1, 1 and 8 s1. The interrupted deformations were conducted with delay times varying between 1 to 20 s after achieving a strain of approximately 0.2 to 0.4 in the first stage. The fractional softening has been predicted by three different methods, namely the offset-stress method, the back-extrapolation stress method and a currently proposed strain-recovery method. It has been found that the back-extrapolation stress method normally predicts higher reloading stress and hence a lower fractional softening than that of the offset-stress method. The strain-recovery method yields consistent results in the estimation of fractional softening that can be used in predicting the deformation mechanism.
Impact and interest:
Citation counts are sourced monthly from and citation databases.
These databases contain citations from different subsets of available publications and different time periods and thus the citation count from each is usually different. Some works are not in either database and no count is displayed. Scopus includes citations from articles published in 1996 onwards, and Web of Science® generally from 1980 onwards.
Citations counts from theindexing service can be viewed at the linked Google Scholar™ search.
|Item Type:||Journal Article|
|Additional Information:||For more information please refer to the publisher's website (link above) or contact the author: firstname.lastname@example.org|
|Keywords:||Deformation mechanism, Medium, carbon steel, Multi, stage compression|
|Subjects:||Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > MECHANICAL ENGINEERING (091300) > Mechanical Engineering not elsewhere classified (091399)|
|Divisions:||Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering|
|Copyright Owner:||Copyright 1998 Elsevier|
|Deposited On:||09 Mar 2007 00:00|
|Last Modified:||15 Jan 2009 07:22|
Repository Staff Only: item control page