Modification of Structural Phase State and Mechanical Properties of Poly-Grained Titanium Alloy Implanted by Aluminum Ions

2nd International Symposium on Fundamental Aspects of Rare-earth Elements Mining and Separation and Modern Materials Engineering

材料科学;物理学

Nikonenko, A.V.^1 ; Popova, N.A.^2,3 ; Nikonenko, E.L.^2,4 ; Kalashnikov, M.P.^3 ; Kurzina, I.A.^1

National Research Tomsk State University, Lenin Ave. 36, Tomsk

634050, Russia^1

Tomsk State University of Architecture and Building, Solyanaya Sq. 2, Tomsk

634003, Russia^2

Institute of Strength Physics and Materials Science SB RAS, 8/2 Akademicheskii Ave., Tomsk

634021, Russia^3

National Research Tomsk Polytechnic University, Lenin Ave. 30, Tomsk

634050, Russia^4

关键词: Aluminum ions;    Commercially Pure titaniums;    Implantation depth;    Modified surfaces;    Small grains;    Structural-phase state;    Subsurface layer;    TEM analysis;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/112/1/012032/pdf
DOI  :  10.1088/1757-899X/112/1/012032

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

The paper presents TEM analysis of microstructure, phase composition, and mechanical properties of commercially pure titanium. These properties of two types of grains are compared before and after modification of titanium by aluminum ions, namely: large grains (1.4 μm) and small (0.5 μm) grains. The analysis shows that ion implantation results in a considerable improvement of mechanical properties of both large and small grains throughout their implantation depth. However, with increase of the grain size, the stress in the ion- modified surface layer decreases while in the subsurface layer it increases.