Rapidly Solidified Aluminum-Based High-Temperature Alloys.
II. Mechanical Properties

A.Kraynikov,
 
O.Neikov
 

I. M. Frantsevich Institute for Problems of Materials Science of the NAS of Ukraine, Krzhizhanovsky str., 3, Kyiv, 03142, Ukraine
Powder Metallurgy - Kiev: Frantsevich Institute for Problems of Materials Science NASU, 2012, #09/10
http://www.materials.kiev.ua/article/1086

Abstract

A comparative analysis of the strength and plasticity of a series of rapidly solidified high-temperature aluminum alloys is carried out on the basis of tensile tests in a wide temperature range. The properties of the following alloy systems are studied: Al–Fe–Ce, Al–Fe–Cr–(TM), Al–Cr–Zr(Mn), and Al–Fe–V(Mo)–Si. The effect of the doping content and rapid solidification technique on strength is analyzed. The best specimens of green products show a strength of 550–600 MPa at room temperature and not less than 200–250 MPa at 300 °С. The strength of Al–Fe–Cr–(TM) alloys which contain a high volume content of quasicrystals is approximately 100 MPa higher at 20 and 300 °С, while their elongation is 50 to 67% lower than the corresponding parameters of other materials.


ELONGATION, HIGH-TEMPERATURE ALUMINUM ALLOYS, INTERMETALLIC PHASES, RAPID CRYSTALLIZATION TECHNIQUE, STRENGTH, TRANSITION METAL DOPING