High-strain-rate superplastic behavior in a super-rapidly-solidified Al-Si system alloy

被引：29
作者：
Fujino, S
Kuroishi, N
Yoshino, M
Mukai, T
Okanda, Y
Higashi, K
机构：
[1] Advanced Technology Laboratory, Kubota Co., Ryugasaki City 301
[2] Casting R and D Department, Kubota Co., Osaka 551
[3] Mechanical Engineering Department, Osaka Munic. Tech. Res. Institute, Osaka 536
[4] Dept. of Mech. Systems Engineering, College of Engineering, Osaka Prefecture University, Osaka 593
来源：
SCRIPTA MATERIALIA | 1997年 / 37卷 / 05期
关键词：
D O I：
10.1016/S1359-6462(97)00153-X
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
High strain rate superplasticity was found in a super-rapidly-solidified aluminum alloy, an as-extruded Al-Si-Fe-Mg-Cu-Ni-Mo alloy fabricated by warm consolidation of its powders which was developed to be a fine-grained structure of 1.4 μm in size with a homogeneous distribution of fine Si particles of 1 μm in size. The large elongation of 275% was recorded at 1 × 10-1 s-1 and at 803K, at which a high m value of 0.5 was obtained. The superplastic strain rate for the Al-Si-Fe-Mg-Cu-Ni-Mo alloy was two or three orders of magnitude higher than that for a conventional superplastic alloy. This result shows clearly a new possibility for development of high strain rate superplasticity in a wear-resisting Al-Si alloys fabricated by super-rapidly-solidified powders.
引用
收藏
页码：673 / 678
页数：6
相关论文
共 8 条
  • [1] SUPERPLASTIC-LIKE BEHAVIOR AT HIGH-STRAIN RATES IN MECHANICALLY ALLOYED ALUMINUM
    BIELER, TR
    NIEH, TG
    WADSWORTH, J
    MUKHERJEE, AK
    [J]. SCRIPTA METALLURGICA, 1988, 22 (01): : 81 - 86
  • [2] THE HIGH-STRAIN RATE SUPERPLASTIC DEFORMATION MECHANISMS OF MECHANICALLY ALLOYED ALUMINUM-IN90211
    BIELER, TR
    MUKHERJEE, AK
    [J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1990, 128 (02): : 171 - 182
  • [3] HIGASHI K, 1990, MATER RES SOC SYMP P, V196, P385, DOI 10.1557/PROC-196-385
  • [4] POSITIVE EXPONENT STRAIN-RATE SUPERPLASTICITY IN MECHANICALLY ALLOYED ALUMINUM IN9021
    HIGASHI, K
    OKADA, T
    MUKAI, T
    TANIMURA, S
    [J]. SCRIPTA METALLURGICA ET MATERIALIA, 1991, 25 (09): : 2053 - 2057
  • [5] HIGH-STRAIN RATE SUPERPLASTICITY IN AN AL-NI-MISCH METAL ALLOY PRODUCED FROM ITS AMORPHOUS POWDERS
    HIGASHI, K
    MUKAI, T
    TANIMURA, S
    INOUE, A
    MASUMOTO, T
    KITA, K
    OHTERA, K
    NAGAHORA, J
    [J]. SCRIPTA METALLURGICA ET MATERIALIA, 1992, 26 (02): : 191 - 196
  • [6] JORSTAD JL, 1968, T METALL SOC AIME, V242, P1217
  • [7] EXTENDED DUCTILITY AT HIGH-STRAIN RATES IN A MECHANICALLY ALLOYED ALUMINUM-ALLOY
    NIEH, TG
    GILMAN, PS
    WADSWORTH, J
    [J]. SCRIPTA METALLURGICA, 1985, 19 (11): : 1375 - 1378
  • [8] YOSHINO M, 1995, 29 KUB, P7
1