The combination of precipitation and dispersion hardening in powder metallurgy produced Cu-Ti-Si alloy

被引：27
作者：
Bozic, D. [1 ]
Dimcic, O. [2 ]
Dimcic, B. [1 ]
Cuijovic, I. [1 ]
Rajkovic, V. [1 ]
机构：
[1] Inst Nucl Sci Vinca, Belgrade 11001, Serbia
[2] TCF, Belgrade 11070, Serbia
来源：
MATERIALS CHARACTERIZATION | 2008年 / 59卷 / 08期
关键词：
Cu-Ti-Si; precipitation hardening; dispersion hardening;
D O I：
10.1016/j.matchar.2007.09.005
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Microstructure and microhardness properties of precipitation hardened Cu-Ti and precipitation/dispersion hardened Cu-Ti-Si alloys have been analyzed. Cu-1.2Ti and Cu-1.2Ti-3TiSi(2) (wt.%) atomized powders were characterized before and after consolidation by HIP (Hot Isostatic Pressing). Rapidly solidified powders and HIP-ed compacts were subsequently subjected to thermal treatment in hydrogen at temperatures between 300 and 600 degrees C. Compared to Cu-Ti powder particles and compacts, obtained by the same procedure, the strengthening effect in Cu-1.2Ti-3TiSi(2) powder particles and compacts was much greater. The binary and ternary powders both reveal properties superior to those of Cu-1.2Ti and Cu-1.2Ti-3TiSi(2) compacts. Microhardness analysis as a function of the aging temperature of Cu-1.2Ti-3TiSi(2) alloy shows an interaction between precipitation and dispersion hardening which offers possibilities for an application at elevated temperatures. (C) 2007 Elsevier Inc. All rights reserved.
引用
收藏
页码：1122 / 1126
页数：5
相关论文
共 11 条
  • [1] PRECIPITATION HARDENING
    ARDELL, AJ
    [J]. METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1985, 16 (12): : 2131 - 2165
  • [2] BERENZHNOI AS, 1960, SILICON ITS BINARY S, P47
  • [3] Bozic D., 1991, Powder Metallurgy, V34, P199
  • [4] STRUCTURE AND PROPERTIES OF AGE HARDENED CU-TI ALLOYS
    DATTA, A
    SOFFA, WA
    [J]. ACTA METALLURGICA, 1976, 24 (11): : 987 - 1001
  • [5] HARDENING BY SPINODAL MODULATED STRUCTURE
    KATO, M
    MORI, T
    SCHWARTZ, LH
    [J]. ACTA METALLURGICA, 1980, 28 (03): : 285 - 290
  • [6] PRECIPITATION OF TITANIUM IN COPPER AND COPPER-NICKEL BASE ALLOYS
    KNIGHTS, R
    WILKES, P
    [J]. ACTA METALLURGICA, 1973, 21 (11): : 1503 - 1514
  • [7] KRATOCHVIL P, 1979, P 5 INT C STRENGTH M
  • [8] SPINODAL DECOMPOSITION IN AGE HARDENING COPPER-TITANIUM ALLOYS
    LAUGHLIN, DE
    CAHN, JW
    [J]. ACTA METALLURGICA, 1975, 23 (03): : 329 - 339
  • [9] Murray J., 1983, J PHASE EQUILIB, V4, P81, DOI DOI 10.1007/BF02880329
  • [10] RUHLE M, 1980, Z METALLKD, V71, P65
12