Mechanical Properties Of Quasicrystal Dispersed Al-Li-Cu Alloy

Autor:	K Kozawa, K Mitsugi, Takashi Okada, T Matumura, Takanori Nakamura, Y. Ozu, Hirokazu Ishii, Yoshitake Nishi, Kazuya Oguri
Rok vydání:	1998
Předmět:	Structural material Materials science Alloy Quasicrystal chemistry.chemical_element engineering.material Specific strength Brittleness chemistry Aluminium Vickers hardness test engineering Composite material Dispersion (chemistry)
Zdroj:	Scopus-Elsevier
ISSN:	1946-4274 0272-9172
Popis:	To apply the ductile structural materials, the quasicrystal dispersion in aluminum alloys is one of effective methods. We have investigated mechanical properties of quasicrystal dispersed Al- Li-Cu alloy prepared by the twin-type piston anvil apparatus. The slow cooled samples are hard and ductile. The evaluated values of brittleness are from 6.0 to 14 erg for Ef, from 0.52 to 0.73MNm−3/2 for K1c and from 5.5 to 7.7 Nm−1 for Gic for the fastest and slowest cooled samples, respectively. The hardness of the quasicrystal dispersed Al-Li-Cu alloy is higher than that of the other commercial aluminum alloys. Based on the relationship between Vickers hardness and proof stress of aluminum alloys, we estimate the specific strength of Al-Li-Cu quasicrystal alloy. The maximum value is the higher than that of Ti alloys.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0bb060fb7449d48007c2636392611a42 https://doi.org/10.1557/proc-553-507 Zobrazit plný text záznamu Full text from SpringerLink