Boron-modified Ni3Al intermetallic compound formed by spark plasma sintering of mechanically activated Ni and Al powders

International Conference on Mechanical Engineering, Automation and Control Systems 2015

机械制造;无线电电子学;计算机科学

Shevtsova, L.I.^1 ; Ogneva, T.S.^1 ; Mul, D.O.^1 ; Esikov, M.A.^2 ; Larichkin, A.Yu.^2 ; Malikov, V.N.^3

Department of Materials Science, Novosibirsk State Technical University, 20, Karla Marksa ave., Novosibirsk

630073, Russia^1

Lavrentyev Institute of Hydrodynamics, 15, Lavrentyeva ave., Novosibirsk

630090, Russia^2

Altay State University, 61, Lenina ave., Barnaul

656049, Russia^3

关键词: Al powder;    Atomic ratio;    Boron additions;    Maximum levels;    Mechanically activated mixtures;    Relative density;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/124/1/012139/pdf
DOI  :  10.1088/1757-899X/124/1/012139

学科分类：计算机科学（综合）

来源: IOP

【 摘 要 】

A Ni3Al intermetallic compound was obtained by spark plasma sintering of mechanically activated Ni and Al powders in atomic ratio 3:1 respectively. Samples with boron addition of 0.1 and 0.2% (wt.) and samples without boron were obtained. The maximum value of the relative density (∼99 %) has been obtained for the material by sintering of mechanically activated mixture powders modified with 0.1% of boron. No differences have been found between the structure of boron-modified Ni3Al and Ni3Al without boron addition. The maximum level of bending strength (2200 MPa) has been achieved for Ni3Al with 0.1% (wt.) of boron. This value is almost 3 times the bending strength of the sample of Ni3Al sintered without boron addition.