Energetic ion beam induced crystal phase transformation and resulting hardness change in Ni3Al intermetallic compound

被引：7

作者：

Yoshizaki, H. ^{[1
]}

Hashimoto, A. ^{[1
]}

Kaneno, Y. ^{[1
]}

Semboshi, S. ^{[2
]}

Hori, F. ^{[1
]}

Saitoh, Y. ^{[3
]}

Iwase, A. ^{[1
]}

机构：

[1] Osaka Prefecture Univ, Dept Mat Sci, Sakai, Osaka 5998531, Japan

[2] Tohoku Univ, Inst Mat Res, Kansai Ctr, Sakai, Osaka 5998531, Japan

[3] Japan Atom Energy Agcy, Takasaki Adv Radiat Res Inst, Takasaki, Gunma 3701292, Japan

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 2015年 / 354卷

关键词：

Ni3Al; Ion irradiation; Order-disorder transformation; Vickers hardness; Thermal annealing; ELECTRON-IRRADIATION; ALLOY SYSTEM; MICROSTRUCTURE; AMORPHIZATION; EVOLUTION;

D O I：

10.1016/j.nimb.2014.11.067

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

The Ni3Al bulk intermetallic compound was irradiated with 5.4-MeV Al, 10-MeV I and 16-MeV Au ions at room temperature. The effect of irradiation on the lattice structure was observed by X-ray diffraction (XRD). The change in Vickers hardness by irradiation was estimated. A crystal structure analysis showed that, the Ni3Al lattice structure transforms from an ordered L1(2) lattice structure to a disordered A1 (fcc) lattice structure by energetic ion irradiation. The relative degree of order correlates well with the density of energy that was elastically deposited by irradiation. The Vickers hardness tends to decrease with an increase in ion fluence. The hardness is not correlated with the elastically deposited energy. The effect of annealing at elevated temperatures on the irradiation induced crystal phase transformation and the Vickers hardness is also discussed. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：287 / 291

页数：5

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