Synthesis, microstructure, and mechanical properties of in situ TiB2/Al-4.5Cu composites

Autor:	Li Hongying, Zhao Shouxin, Ou Yangxun, Lai Yongqiu
Jazyk:	angličtina
Rok vydání:	2018
Předmět:	al-4.5cu alloy in situ particulate-reinforced composites strengthening mechanism Materials of engineering and construction. Mechanics of materials TA401-492
Zdroj:	Science and Engineering of Composite Materials, Vol 25, Iss 3, Pp 453-462 (2018)
Druh dokumentu:	article
ISSN:	0792-1233 2191-0359
DOI:	10.1515/secm-2015-0478
Popis:	In situ TiB2/Al-4.5Cu composites with different TiB2 particle amounts were fabricated by the salt-metal reaction technique. The effects of in situ TiB2 on the microstructure and mechanical properties of Al-4.5Cu alloy were studied in this paper. The results showed that in situ TiB2 particles had significant effect on refining grain size and improving mechanical properties of as-cast Al-4.5Cu alloy. With the amounts of TiB2 particles increasing, the yield strength and ultimate tensile strength were improved, while the elongation reduced. The strengthening mechanisms of the in situ particle-reinforcing Al matrix composites were discussed, and the yield strength was predicted accurately by accounting for the three strengthening mechanisms and particle distribution.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/daaf6a8111ba4f2ca94000e126d9cf90 Zobrazit plný text záznamu View record in DOAJ