21-04-2023 дата публикации
Номер: CN115992322A
Автор:
CHEN DAHUI,
YU YE,
ZHU HONGLEI,
HONG XIAOLU,
XU YING,
ZHANG JIANG,
PENG YINJIANG,
LIU YONGQIANG,
ZHOU PEIYU,
WU LIANGYU,
WANG LEI,
HOU LINCHONG,
LIU CHEN,
REN ZHENG
Принадлежит:
The invention discloses a preparation method of an aluminum alloy, which is characterized in that the aluminum alloy comprises the following components in percentage by mass: 5.0 to 6.0 weight percent of Mg, 2.3 to 3.3 weight percent of Si, 0.5 to 0.8 weight percent of Mn, 0.01 to 0.2 weight percent of Ti, 0.1 to 0.3 weight percent of Hf, less than or equal to 0.15 weight percent of Fe, less than or equal to 0.03 weight percent of Cu, less than or equal to 0.07 weight percent of Zn and the balance of Al and inevitable impurities, and the mass ratio of Mg to Si is 1.8 to 2.1. By controlling the components and the preparation method of the aluminum alloy, the area proportion of the Mg2Si phase is controlled to be 6.0%-9.5%; the content of inclusions such as MgO and Al2O3 is controlled to be 1% or below; the alpha-Al phase is spherical, and the average grain size is smaller than or equal to 45 microns; and the lamellar spacing of the Mg2Si phase is less than or equal to 3 microns. And finally ...
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