INFLUENCE OF ZR ON THE GRAIN-REFINEMENT OF ALUMINUM

被引：0
作者：
JOHNSSON, M
机构：
来源：
ZEITSCHRIFT FUR METALLKUNDE | 1994年 / 85卷 / 11期
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中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The influence of Zr on the grain refinement of aluminium after additions of Ti and B is discussed for Zr concentrations both below and above the peritectic (0.11 mass%). For hypoperitectic concentrations it is found that Zr and Ti in solution cooperate in promoting a fine-grained structure. At hyperperitectic Zr concentrations a deterioration occurs in the grain refinement due to formation of a mixed aluminide phase (Ti1-xZrx)Al3 that removes dissolved Ti from the melt. Presence of this phase results in a lowering of the total growth-restricting effect by solutes on the growth rate of the alpha-Al dendrites.
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页码：786 / 789
页数：4
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共 16 条
  • [1] ABDELHAMID AA, 1989, Z METALLKD, V80, P643
  • [2] ABDELHAMID AA, 1983, MEM SCI REV MET OCT, P591
  • [3] BIRCH MEJ, 1988, 1987 P SOL PROC, P149
  • [4] DELAMORE GW, 1971, METALL TRANS, V2, P1733
  • [5] MUTUAL SOLUBILITIES OF TITANIUM AND BORON IN PURE ALUMINUM
    FINCH, NJ
    [J]. METALLURGICAL TRANSACTIONS, 1972, 3 (10): : 2709 - &
  • [6] JOHNSSON M, 1994, Z METALLKD, V85, P781
  • [7] JOHNSSON M, 1992, Z METALLKD, V83, P774
  • [8] STUDY OF THE MECHANISM OF GRAIN-REFINEMENT OF ALUMINUM AFTER ADDITIONS OF TI-CONTAINING AND B-CONTAINING MASTER ALLOYS
    JOHNSSON, M
    BACKERUD, L
    SIGWORTH, GK
    [J]. METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1993, 24 (02): : 481 - 491
  • [9] Johnsson M., 1993, THESIS STOCKHOLM U
  • [10] FACTORS AFFECTING GRAIN REFINEMENT OF ALUMINUM USING TITANIUM AND BORON ADDITIVES
    JONES, GP
    PEARSON, J
    [J]. METALLURGICAL TRANSACTIONS B-PROCESS METALLURGY, 1976, 7 (02): : 223 - 234
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