Superplastic deformation in two microduplex stainless steels

D. R. Lesuer; T. G. Nieh; C. K. Syn; E. M. Taleff

doi:10.4028/www.scientific.net/msf.243-245.469

Superplastic deformation in two microduplex stainless steels

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

Overview

2 Scopus Citations

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Author(s)

D. R. Lesuer
T. G. Nieh
C. K. Syn
E. M. Taleff

Detail(s)

Original language	English
Pages (from-to)	469-474
Journal / Publication	Materials Science Forum
Volume	243-245
Publication status	Published - 1997
Externally published	Yes

Link(s)

DOI	DOI https://doi.org/10.4028/www.scientific.net/msf.243-245.469 Final Published version
	Check@CityULib
Link to Scopus	https://www.scopus.com/record/display.uri?eid=2-s2.0-5244371558&origin=recordpage
Permanent Link	https://scholars.cityu.edu.hk/en/publications/publication(85782738-8608-476a-a955-b86906e6dd18).html

Abstract

The deformation behavior and mechanisms of superplastic flow in two microduplex stainless steels have been studied at ∼0.7T_m. The two steels differed in initial grain size by a factor of 3. Both steels exhibited solute-drag-controlled grain boundary sliding in a high temperature γ+δ phase field. In a lower temperature γ+σ phase field, the fine-grained steel (L̄ = 5 μm) exhibited climb-controlled grain boundary sliding and the coarser-grained steel (L̄ = 15 μm) exhibited solute-drag-controlled slip creep.

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