Evaluation of austenite grains growth in high nb and low nb hsla steel

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This study was presented due to the increasing demand of High Strength Low Alloy (HSLA) steel, such as demand for thinner-walled and large diameter pipes in oil and gas industries. In order to meet the imposed economic restrictions, the high standard of all kinds of steel properties is required and can be achieved by controlling the steel microstructure. The austenite grain size influences the microstructure and properties of steel significantly, in which fine austenite grain size leads to higher strength, better ductility, and higher toughness. Studying the behavior of steel grain growth during the reheating process is still being a fascinating subject. P.R. Rios and D Zollner [1] mentioned that grain growth is the most important unresolved issue that has been a topic of research for many years. In this research, the behavior of austenite grain growth at a high niobium-low carbon (High Nb-low C) and low Nb-high C HSLA steel was evaluated, and the result was compared with other investigation. The results found that the austenite grain growth at high Nb-high C steel was slower than the growth at a low Nb-low C steel. The activation energy of austenite grain growth and both constant A and exponent n ware determined close agreement was obtained between the prediction of the model and the experimental grain size value.

Original languageEnglish
Title of host publicationAdvanced Materials Research QiR 16
EditorsAnne Zulfia, Wahyuaji Narottama Putra
PublisherTrans Tech Publications Ltd
Pages404-411
Number of pages8
ISBN (Print)9783035715996
DOIs
Publication statusPublished - 2020
Event16th International Conference on Quality in Research, QiR 2019 - Padang, Indonesia
Duration: 22 Jul 201924 Jul 2019

Publication series

NameMaterials Science Forum
Volume1000 MSF
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Conference

Conference16th International Conference on Quality in Research, QiR 2019
Country/TerritoryIndonesia
CityPadang
Period22/07/1924/07/19

Keywords

  • Austenite
  • Oswald repining
  • Pinning effect
  • Solubility Temperature

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