A study of phase transformations in complex matallic alloys Al73Mn23Pd4 and Al73Mn21Pd6

0352180 - ÚFM 2011 RIV CH eng J - Journal Article
Priputen, P. - Černičková, I. - Kusý, M. - Illeková, E. - Švec, P. - Buršík, Jiří - Svoboda, Milan - Dolinšek, J. - Janovec, J.
A study of phase transformations in complex matallic alloys Al73Mn23Pd4 and Al73Mn21Pd6.
Key Engineering Materials. Roč. 465, - (2011), s. 302-305. ISSN 1013-9826
Institutional research plan: CEZ:AV0Z20410507
Keywords : ternary alloy system * phase transformation * DTA/SEM
Subject RIV: BM - Solid Matter Physics ; Magnetism

The microstructure characterization of Al73Mn23Pd4 and Al73Mn21Pd6 alloys was done after annealing at 900oC for 312 h and subsequent water quenching, as well as after thermat cycling. DTA and EDX/WDX/SEM techniques were used in the investigation. It was found out that the alloys consist of the single ternary T-phase after annealing and water quenching. The DTA experiment confirmed the stability of this phase also at lower temperatures. After DTA, the alloys exhibited double-phase microstructure consisting of the ternary T-phase and probably the icosahedral I-phase. It was proved an incongruent transformation of the ternary T-phase into the liquid and vice versa.
Permanent Link: http://hdl.handle.net/11104/0191755