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Structural Evolutions of the Ni75-Ti25 Powders During Mechanical Alloying and Subsequent Heat Treatment

Publish place: 3rd International Conference on Materials Heat Treatment
Publish Year: 1391
Type: Conference paper
Language: English
View: 2,120

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Link to this Paper:
https://civilica.com/doc/152989

Document National Code:

ICMH03_036

Index date: 11 July 2012

Structural Evolutions of the Ni75-Ti25 Powders During Mechanical Alloying and Subsequent Heat Treatment abstract

In recent years, intermetallic compounds have been of particular interest to researchers due to their special properties. Ni-Ti compounds have many applications in various industries due to their high strength, high corrosion resistance and appropriate tribology behaviour. Mechanical alloying and subsequent heat treatment is one of the important methods of producing intermetallic compounds. This study was an attempt to investigate the formation of nanostructure intremetallic compound in Ni-Ti system, using mechanical alloying and subsequent heat treatment. Ni75Ti25 Initial powder was milled in a planetary ball mill under argon atmosphere at different times and was evaluated by X-ray diffraction (XRD) and Scanning Electron Microscope (SEM). Results showed that the Ni3Ti nanostructure Intermetallic compound was formed after 75 hoar ball mill. Also, heat treatment on 1050 ºC lead to formation of NiTi2 and some titanium oxide in addition to stabilizing Ni3Ti nanostructure.

Structural Evolutions of the Ni75-Ti25 Powders During Mechanical Alloying and Subsequent Heat Treatment Keywords:

Mechanical alloying , Nanostructure intermetallic compound , Annealing , Ni-Ti system

Structural Evolutions of the Ni75-Ti25 Powders During Mechanical Alloying and Subsequent Heat Treatment authors

Mansoor Toorani Farani

Department of Materials Engineering, Isfahan University of Technology (IUT), Isfahan, Iran

Mehdi Salehi

Professor

Hosein Edris

Professor

Hesam Rezvani Sichani

M.Sc.

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