Change search
ReferencesLink to record
Permanent link

Direct link
Evaluation of strain hardening parameters
KTH, Superseded Departments, Materials Science and Engineering.
KTH, Superseded Departments, Materials Science and Engineering.
KTH, Superseded Departments, Materials Science and Engineering.
2004 (English)In: Journal of Iron and Steel Research International, ISSN 1006-706X, Vol. 11, no 4, 38-46 p.Article in journal (Refereed) Published
Abstract [en]

The plane-strain compression test for three kinds of materials was carried out in a temperature range between room temperature and 400 degreesC. The sigma-epsilon curves and strain-hardening rate at different temperatures were simulated and a reasonable fit to the experimental data was obtained. A modified model created by data inference and computer simulation was developed to describe the strain hardening at a large deformation, and the predicted strain hardening are in a good agreement with that observed in a large range of stress. The influences of different parameters on strain hardening behaviour under large deformation were analysed. The temperature increase within the test temperatures for stainless steel 18/8 Ti results in dropping of flow stress and strain-hardening rate. For favourable gamma-fibre texture to obtain high r, the cold rolling was applied at large reduction. In the experimental procedure, the X-ray diffraction test was carried out to compare the strain hardening and microstructure under large deformation for a bcc steel (low carbon steel SS-1142). The results indicate that the high strain-hardening rate possibly occurs when the primary slip plane 110 is parallel to the rolling plane and the strain-hardening rate decreases when lots of 110 plane rotate out from the orientation {110}//RP.

Place, publisher, year, edition, pages
2004. Vol. 11, no 4, 38-46 p.
Keyword [en]
deformation model, strain hardening, strain hardening rate, dislocation density, friction, copper single-crystals, dislocation arrangement, density, stress, steels, deformation, textures, kinetics, flow
National Category
Physical Sciences
URN: urn:nbn:se:kth:diva-23817ISI: 000224541700008ScopusID: 2-s2.0-5544278906OAI: diva2:342516
QC 20100525 QC 20111101Available from: 2010-08-10 Created: 2010-08-10 Last updated: 2012-05-04Bibliographically approved

Open Access in DiVA

No full text


Search in DiVA

By author/editor
Ding, Zong-HaiHuml, Pavel
By organisation
Materials Science and Engineering
In the same journal
Journal of Iron and Steel Research International
Physical Sciences

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Total: 41 hits
ReferencesLink to record
Permanent link

Direct link