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Analyzing hysteresis and thermal expansion coefficient of M40/AZ91D during thermal cycling

  • Heilongjiang Academy of Sciences
  • Harbin Institute of Technology

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

Abstract

In this work, AZ91D composite reinforced with M40 fiber was prepared by pressure impregnation method. Expansion behaviors of M40/AZ91D composite were studied with thermal expansion instrument in 25-150°C and 25-150°C temperature ranges of internal heat circulation, and then analyzed the influence law of hysteresis, residual strain and coefficient of thermal expansion (CTE) by different temperature change rate. The results revealed that residual stress and strain in process of pressure impregnation would lead to strain hysteresis and residual strain of composite in thermal cycling. At the same time, the CTE of the composites decreased with the increase of cycle times. Residual strain of the composite went up with the rise of temperature changed rate of the thermal cycling and CTE decreased with temperature change rate ascending in the 25-15°C temperature range. The CTE of the composites decreased with the increase of temperature during the heating process, which cut down with the increase of temperature in process of heating and cooling in the 25-495oC temperature range.

Original languageEnglish
Title of host publicationIUMRS International Conference in Asia - IUMRS-ICA 2016
EditorsYafang Han, Baiqing Xiong, Jun Zhang, Xuefeng Liu, Xuefeng Liu, Jijun Zhao, Runhua Fan, Zuoren Nie, Meifang Zhu
PublisherTrans Tech Publications Ltd
Pages890-897
Number of pages8
ISBN (Print)9783035711516
DOIs
StatePublished - 2017
Externally publishedYes
Event17th IUMRS International Conference in Asia, IUMRS-ICA 2016 - Qingdao, China
Duration: 20 Oct 201624 Oct 2016

Publication series

NameMaterials Science Forum
Volume898 MSF
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Conference

Conference17th IUMRS International Conference in Asia, IUMRS-ICA 2016
Country/TerritoryChina
CityQingdao
Period20/10/1624/10/16

Keywords

  • Metal matrix composites
  • Thermal expansion
  • Thermal expansion coefficient
  • Thermal recycling

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