Mechanical properties and microstructures of melt-quenched Al-Fe-Ti-M (M = V, Cr, Mn) alloys

被引：0

作者：

Sasamori, Kenichiro

Kimura, Hisamichi

Inoue, Akihisa

Murakami, Yoshihiro

机构：

来源：

Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy | 2000年 / 47卷 / 04期

关键词：

Aluminum alloys - Metallographic microstructure - Quenching - Tensile strength - Fracture toughness - Quasicrystals - Elastic moduli - Vickers hardness testing;

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摘要：

Ribbons of Al-Fe-Ti-M (M = V, Cr, Mn) alloys were prepared by melt-quenching (MQ) and their bulk alloys by the powder metallurgy (P/M) method using atomized powders. The ribbon Al-Fe-Ti-M (M = V, Cr, Mn) alloys produced at the circumferential velocity (Vc) of 40 m/s consisted of fcc-Al and amorphous phases. Maximum tensile fracture strength (σf) of the Al-Fe-Ti-M ribbons was 1170 MPa for Al93Fe3Ti2V2 alloy. The constituent structure was nearly the same as those for the powder and bulk Al-Fe-Ti-M (M = V, Cr, Mn) alloys. The bulk Al93Fe3Ti2Cr2 alloy consisted of quasicrystalline particles dispersed into fcc-Al. Decomposition temperature of these particles was 740 K. The ultimate tensile strength, 0.2% proof strength, plastic elongation, Young's modulus and Vicker's hardness were 650 MPa, 530 MPa, 4.4%, 86 GPa and 190, respectively.

引用

页码：417 / 422