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Reheating and thixoforging of ZK60+RE alloy deformed by ECAE

  • Zu de ZHAO
  • , Yuan sheng CHENG
  • , Qiang CHEN*
  • , Yan bin WANG
  • , Da yu SHU
  • *Corresponding author for this work
  • Southwest Technique and Engineering Institute
  • Harbin Institute of Technology

Research output: Contribution to journalArticlepeer-review

Abstract

The two-pass equal channel angular extrusion (ECAE) process was introduced into strain-induced melt activation (SIMA) to predeform a ZK60 alloy with rare earth (RE) addition. Microstructure evolution of ECAE-formed ZK60+RE alloy during reheating was investigated. Furthermore, tensile properties of thixoforged components were determined. The results show that the SIMA process can produce ideal microstructures, and spheroidized solid particles with little entrapped liquid can be obtained. With prolonging holding time, the size of solid particles increases and the degree of spheroidization is improved. The tensile properties of the thixoforged ZK60+RE samples are close to those of two-pass ECAE-formed samples.

Original languageEnglish
Pages (from-to)178-182
Number of pages5
JournalTransactions of Nonferrous Metals Society of China (English Edition)
Volume20
Issue number2
DOIs
StatePublished - Feb 2010
Externally publishedYes

Keywords

  • equal channel angular extrusion (ECAE)
  • magnesium alloy
  • reheating
  • thixoforging

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