Investigation on Hot Deformation Behavior of 430 Ferritic Stainless Steel

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The hot deformation behavior and microstructure evolution of 430 ferritic stainless steel (430 FSS) were investigated within the temperature range of 950°C~1150°C at the strain rate of 0.01 s-1, 0.1 s-1, and 1.0 s-1 using a thermo-mechanical simulator. The effects of temperature and strain rate on the flow behavior and microstructures of 430 ferritic stainless steel at reduction ratio 50 % were analyzed. Results indicated that the apparent stress exponent and the apparent activation energy of the steel were about 1.08 and 344 kJ/mol, respectively. The hot deformation equation of 430 was considered as. There was a relationship between the softening mechanism and Zener-Hollomon parameter (abbreviated Z). With the Z value increasing from 4.30×1010 to 5.00×1014, the hot deformation peak stress correspondingly increased from 10.74 MPa to 76.02MPa.

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Periodical:

Edited by:

Qingzhou Xu

Pages:

82-85

DOI:

10.4028/www.scientific.net/AMR.721.82

Citation:

J. B. Zhang et al., "Investigation on Hot Deformation Behavior of 430 Ferritic Stainless Steel", Advanced Materials Research, Vol. 721, pp. 82-85, 2013

Online since:

July 2013

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$35.00

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