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| Influence of Carbon Content on Strain Hardening Behaviour of Sintered Plain Carbon Steel Preforms |
| S Narayan,A Rajeshkannan |
| Mechanical Engineering, The University of the South Pacific, Laucala Campus, Suva 1168, Fiji |
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Abstract Complete experimental investigation on the instantaneous strain hardening behaviour of powder metallurgy (P/M) preforms of pure iron, Fe-0.35%C, Fe-0.75%C and Fe-1.1%C was carried out. The strain hardening behaviour of the above-mentioned P/M sintered steel preforms with aspect ratio of 0.4 under triaxial stress state condition was determined by cold upsetting under nil/no and graphite lubricant conditions. The instantaneous strain hardening value (ni), strength coefficient (Ki), and the stress as a function of strain and densification were obtained and analyzed. Furthermore, a relation was obtained from a semi-log plot of stress against relative density and analyzed to study the hardening behaviour owing to densification as stress was a function of induced strain as well as densification in the P/M materials.
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Received: 25 June 2010
Published: 26 September 2011
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A Rajeshkannan;K S Pandey;S Shanmugam;R Narayanasamy. Sintered Fe��0��8%C��1��0%Si��0��4%Cu P/M Steel Preform Behaviour During Cold Upsetting[J]. Chinese Journal of Iron and Steel, 2008, 15(5): 81-0. |
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2011, Vol. 18 
