Experimental investigations of the high-temperature phase relationship and ordering transition in Ni-Mn-Ga ternary system

Yunqing Ma, Shuiyuan Yang, Ryosuke Kainuma, Kiyohito Ishida, Cuiping Wang, Xingjun Liu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

The phase equilibria at 900 °C and B2/L21 order-disorder transition in the Ni-Mn-Ga ternary system were investigated by analyzing the equilibrated alloys and diffusion couples using a combination of techniques. It was confirmed that a bcc single phase region exists in a wide composition range at 900 °C, and the critical temperatures of B2/L21 order-disorder transition were determined in Ni-50 at.% section, which exhibits a maximal ordering transition temperature of 796°C at Mn content of 25 at.%. The obtained results will be helpful for the preparation and annealing of Ni-Mn-Ga alloys in the specific temperature.

Original languageEnglish
Title of host publicationManufacturing Processes and Systems
Pages1695-1700
Number of pages6
DOIs
Publication statusPublished - 2011
Event2010 International Conference on Advances in Materials and Manufacturing Processes, ICAMMP 2010 - Shenzhen, China
Duration: 2010 Nov 62010 Nov 8

Publication series

NameAdvanced Materials Research
Volume148-149
ISSN (Print)1022-6680

Other

Other2010 International Conference on Advances in Materials and Manufacturing Processes, ICAMMP 2010
Country/TerritoryChina
CityShenzhen
Period10/11/610/11/8

Keywords

  • Diffusion couple
  • Order-disorder transition
  • Phase equilibria

ASJC Scopus subject areas

  • Engineering(all)

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