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    • 10. 发明授权
    • Powder forging method of aluminum alloy powder having high proof stress
and toughness
    • 铝合金粉末的粉末锻造方法具有很高的抗应力和韧性
    • US5498393A
    • 1996-03-12
    • US280386
    • 1994-07-26
    • Hiroyuki HorimuraKenji OkamotoMasahiko MinemiToshihiko KajiYoshishige TakanoYoshinobu Takeda
    • Hiroyuki HorimuraKenji OkamotoMasahiko MinemiToshihiko KajiYoshishige TakanoYoshinobu Takeda
    • B22F3/02B22F3/17C22C1/04C22C21/00C22C45/08C22F1/00C22F1/04
    • C22C21/00C22C1/0416
    • An aluminum alloy powder or a green compact thereof is prepared, wherein: (1) the composition formula is Al.sub.100-a-b Fe.sub.a X.sub.b where a and b in atomic % are 4.0.ltoreq.a.ltoreq.6.0, 1.0.ltoreq.b.ltoreq.4.0, and where X is at least one alloy element selected from Y and Mm (mish metal); or (2) the composition formula is Al.sub.100-a-b-c Fe.sub.a Si.sub.b X.sub.c, where a, b and c in atomic % are 3.0.ltoreq.a.ltoreq.6.0, 0.5.ltoreq.b.ltoreq.3.0, and 0.5.ltoreq.c.ltoreq.3.0, and where X is at least one alloy element selected from Ti, Co, Ni, Mn and Cr, and wherein both (1) and (2) include an amorphous phase of at least 1% by volume. The aluminum alloy powder or the green compact thereof is heated at a temperature increasing at a rate of at least 80.degree. C./min. to a predetermined temperature of at least 560.degree. C. and not more than a temperature at which 10% by volume of a liquid phase is contained in the alloy powder or green compact. The aluminum alloy powder or the green compact thereof is powder forged at the predetermined temperature. As a result, an aluminum alloy superior in static strength and dynamic strength can be produced.
    • 制备铝合金粉末或其生坯,其中:(1)组成式为Al100-a-bFeaXb,其中a和b为原子%为4.0 / = 4.0,其中X是选自Y和Mm(金属)中的至少一种合金元素; 或(2)组成式为Al100-ab-cFeaSibXc,其中原子%中的a,b和c为3.0,=6.0,0.5≤b≤3.0,0.5≤c 其中X是选自Ti,Co,Ni,Mn和Cr中的至少一种合金元素,其中(1)和(2)都包括至少1体积%的非晶相。 铝合金粉末或其生坯在以至少80℃/分钟的速度升温的温度下加热。 达到至少560℃的预定温度,并且不超过在合金粉末或生坯中含有10体积%的液相的温度。 铝合金粉末或其生坯是在预定温度下锻造的粉末。 结果,可以制造出静电强度和动态强度优异的铝合金。