Paper Title:
Effects of Microstructure on Mechanical Properties of HRS Processed SUS316L Stainless Steel
  Abstract

Mechanical milled SUS316L stainless steel powder is applied to hot roll sintering (HRS) process. Microstructure and mechanical properties of the HRS material is investigated. Microstructure of material produced by HRS process consists of the shell and core hybrid microstructure, that is, a shell structure with nano grains and a core structure with work-hardened coarse grains. The fine grain structure corresponding to the shell area has (austenite + sigma) nano duplex structure. Work-hardened structure in the core area composes of an austenite phase. The HRS material demonstrates not only superior strength but also enough elongation. Mechanical properties are strongly influenced by the shell/core structure, such as grain size, shell/core size and/or the volume fraction. The shell and core nano-duplex hybrid microstructure by the HRS process has been proved to be very effective to improve mechanical properties.

  Info
Periodical
Advanced Materials Research (Volumes 26-28)
Edited by
Young Won Chang, Nack J. Kim and Chong Soo Lee
Pages
421-424
DOI
10.4028/www.scientific.net/AMR.26-28.421
Citation
H. Fujiwara, M. Nakatani, Y. Iwahashi, K. Ameyama, "Effects of Microstructure on Mechanical Properties of HRS Processed SUS316L Stainless Steel ", Advanced Materials Research, Vols. 26-28, pp. 421-424, 2007
Online since
October 2007
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Price
$32.00
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