Structural stability of the high-aluminium zinc alloys modified with Ti addition

• Autorzy: Krajewski W. K. , Zak P. L. , Orava J. , Greer A. L. , Krajewski P. K.
• Języki publikacji: EN

Abstrakty

EN

The subject of the paper is structural stability of the Zn-26 wt.% Al binary alloys doped with 2.2 wt.% Cu or 1.6 wt.% Ti addition. The structural stability of Zn-Al alloys with increased Al content is connected with stability of solid solution of zinc in aluminium [...] , which is the main component of these alloys microstructure. Such a solution undergoes phase transformations which are accompanied, among others, by changes in dimensions and strength properties. The structural stability of the ZnAL26Cu2.2 and ZnAl26Ti1.6 alloys was investigated using XRD examinations during long term natural ageing after casting, as well as during long term natural ageing after super-saturation and quenching. On the basis of the performed examinations it was stated that small Ti addition to the binary ZnAl25 alloy, apart from structure refinement, accelerates decomposition of the primary [...] phase giving stable structure in a shorter period of time in comparison with the alloy without Ti addition. Addition of Ti in amount of 1.6 wt.%, totally replacing Cu, allows obtaining stable structure and dimensions and allows avoiding structural instability caused by the metastable [...] CuZn4 phase present in the ZnAl26Cu2.2 alloy.

Słowa kluczowe

EN

high-aluminium zinc alloys; Ti addition; structural stability; XRD examinations

PL

wysokoaluminiowy stop cynku; dodatek Ti; stabilność strukturalna

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2012
• Tom: Vol. 12, iss. 1
• Strony: 61--66
• Opis fizyczny: Bibliogr. 18 poz., rys., wykr.

Twórcy

autor

Krajewski W. K.

autor

Zak P. L.

autor

Orava J.

autor

Greer A. L.

autor

Krajewski P. K.

• AGH University of Science and Technology, Faculty of Foundry Engineering, Reymonta 23 Str., 30-059 Krakow, Poland,

Bibliografia

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