The effect of microalloying with silicon and germanium on microstructure and hardness of a commercial aluminum alloy

Autor:	Maksimović Vesna M., Zec Slavica P., Radmilović Velimir R., Jovanović Milan T.
Jazyk:	angličtina
Rok vydání:	2003
Předmět:	al–cu–si–ge alloys al alloy 2219 si–ge precipitate heterogeneous precipita- tion precipitate strengthening. Chemistry QD1-999
Zdroj:	Journal of the Serbian Chemical Society, Vol 68, Iss 11, Pp 893-901 (2003)
Druh dokumentu:	article
ISSN:	0352-5139 1820-7421
DOI:	10.2298/JSC0311893M
Popis:	The effect of small additions of Si and Ge on the microstructure and hardness was investigated during aging of a commercial 2219 aluminum alloy. It was found that for the same level of microalloying in alloy 2219SG (containing Si and Ge), a maximum hardness was achieved 3 times faster than in alloy 2219S (without Ge). The accelerated precipitation kinetics is a consequence of the presence of fine Si–Ge particles, serving as heterogeneous precipitation sites for θ" strengthening particles.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/5621c766c24a4310a08005bf12c04c99 Zobrazit plný text záznamu View record in DOAJ