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Study on after-forging austenite recrystallization rule of low-pressure rotor steel 26Cr2Ni4MoV with thermo-torsion method

  • Guangdong Ocean University
  • Yanshan University
  • Harbin Institute of Technology
  • Yantai University

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

Abstract

In order to investigate the nucleation and growth of after-forging static recrystallization of low-pressure rotor steel 26Cr2Ni4MoV, the thermo-torsion experiment was conducted at 900°C,1000°C and 1100°C, respectively. The outer deformation of the used specimens was 0.21. The specimens were kept under a certain temperature for different periods. Results show that the recrystallization grain grew slowly at 900°C and the grain size became even after 30 minutes. The sizes of most grains were almost constant and only several grains grew bigger after 60 minutes. When the specimens were kept at 1000°C and 1100°C for one minute, static recrystallization was completed and the grain size was even. The said research could provide theoretical base for the controlled forging and after-forging heat treatment.

Original languageEnglish
Title of host publicationAdvances in Materials Manufacturing Science and Technology XIII
Subtitle of host publicationModern Design Theory and Methodology, MEMS and Nanotechnology, Material Science and Technology in Manufacturing
PublisherTrans Tech Publications Ltd
Pages635-640
Number of pages6
ISBN (Print)0878493123, 9780878493128
DOIs
StatePublished - 2009
Externally publishedYes
Event13th International Manufacturing Conference in China, IMCC2009 - Dalian, China
Duration: 21 Sep 200923 Sep 2009

Publication series

NameMaterials Science Forum
Volume628 629
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Conference

Conference13th International Manufacturing Conference in China, IMCC2009
Country/TerritoryChina
CityDalian
Period21/09/0923/09/09

Keywords

  • Forging
  • Rotor
  • Static recrystallization
  • Thermo-torsion

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