Aging property of AZ91D magnesium alloy screw thread-rolled at room temperature using extrusion-torsion simultaneous processing

Mitsuaki Furui*, Shouyou Sakashita, Shougo Suzuki, Tetsuo Aida, Yuusuke Ishisaka, Masayuki Yamamoto, Masayuki Ohta

*Corresponding author for this work

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

Abstract

We have proposed a new extrusion process functionally combined with torsion. Extrusion-torsion simultaneous processing is a very attractive technique for fabricating a rod-shape material with high strength and excellent workability. To improve the hardness, the aging treatment was performed with AZ91D magnesium alloy screw thread-rolled at room temperature using extrusion-torsion simultaneous processing. The distribution of hardness from the tip to center in as thread-rolled screw was modified to uniform distribution by the isothermal aging treatment at 423 K for 460.8 ks. The peak hardness was not depended on the working temperature and rotation speed during extrusion-torsion simultaneous processing. β-Mg17Al12 precipitates are obviously grown in as peak-aged condition comparing with as thread-rolled condition.

Original languageEnglish
Title of host publicationTHERMEC 2016
EditorsChristof Sommitsch, Mihail Ionescu, Brajendra Mishra, Brajendra Mishra, Ernst Kozeschnik, T. Chandra
PublisherTrans Tech Publications Ltd
Pages2450-2455
Number of pages6
ISBN (Print)9783035711295
DOIs
StatePublished - 2017
Event9th International Conference on Processing and Manufacturing of Advanced Materials, THERMEC 2016 - Graz, Austria
Duration: 2016/05/292016/06/03

Publication series

NameMaterials Science Forum
Volume879
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Conference

Conference9th International Conference on Processing and Manufacturing of Advanced Materials, THERMEC 2016
Country/TerritoryAustria
CityGraz
Period2016/05/292016/06/03

Keywords

  • AZ91D magnesium alloy
  • Aging property
  • Extrusion-torsion simultaneous processing
  • Room temperature screw form rolling

ASJC Scopus subject areas

  • General Materials Science
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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