Pulse electric current sintering of iron-base powders prepared by high energy milling

被引：2
|
作者：
Li, Y. Y. [1 ]
Li, X. Q. [1 ]
Long, Y. [1 ]
Shao, M. [1 ]
Xia, W. [1 ]
机构：
[1] S China Univ Technol, Coll Mech Engn, Guangzhou 510640, Peoples R China
来源：
ADVANCES IN MACHINING & MANUFACTURING TECHNOLOGY VIII | 2006年 / 315-316卷
关键词：
iron base powder; high energy milling; pulse electric current sintering; density; microstructure and performance;
D O I：
10.4028/www.scientific.net/KEM.315-316.445
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Fe-2Cu-2Ni-1Mo-0.8C (wt. pct) alloys were successfully fabricated from elemental mixed powders by high energy milling and pulse electric current sintering, and the effects of milling time and sintering parameters on the densification degree, microstructure, mechanical properties and fracture characteristic of sintered material were investigated. Results showed that with increasing milling time, pulse electric current peak and sintering time, the density and transverse rupture strength of sintered alloy were improved. However, higher pulse electric current peak and/or longer sintering time were unfavorable to the density and strength of sintered alloy, because of generating overhigh sintering temperature. The density and transverse rupture strength of sintered alloy could reach 7.74 X 10(3) kg/m(3) and 2231 MPa, respectively, and the corresponding fracture morphology was characterized as intergranular fracture.
引用
收藏
页码：445 / 449
页数：5
相关论文
共 50 条
  • [31] Effect of Mg on the sintering of Al-Mg alloy powders by pulse electric-current sintering process
    Xie, GQ
    Ohashi, O
    Sato, T
    Yamaguchi, N
    Song, MH
    Mitsuishi, K
    Furuya, K
    MATERIALS TRANSACTIONS, 2004, 45 (03) : 904 - 909
  • [32] Phase changes of europium sulfides and ytterbium sulfides prepared by pulse electric current sintering
    Yuan, HB
    Ohta, M
    Hirai, S
    Asahi, H
    Shimakage, K
    Proceedings of the 8th International Symposium on East Asian Resources Recycling Technology-2005: RESOURCES RECYCLING TECHNOLOGY-2005, 2005, : 507 - 510
  • [33] Mechanical and magnetic properties of alumina/nickel nanocomposites prepared by pulse electric current sintering
    Kim, BS
    Sekino, T
    Nakayama, T
    Kusunose, T
    Lee, JS
    Niihara, K
    JOURNAL OF THE CERAMIC SOCIETY OF JAPAN, 2003, 111 (07) : 457 - 460
  • [34] Reduction of Surface Oxide Films in Al–Mg Alloy Powders by Pulse Electric Current Sintering
    Guoqiang Xie
    Osamu Ohashi
    Norio Yamaguchi
    Minghui Song
    Kazutaka Mitsuishi
    Kazuo Furuya
    Tetsuji Noda
    Journal of Materials Research, 2004, 19 : 815 - 819
  • [35] Wear mechanism of copper alloy wire sliding against iron-base strip under electric current
    Nagasawa, H
    Kato, K
    WEAR, 1998, 216 (02) : 179 - 183
  • [36] IRON-BASE MATERIALS MANUFACTURED FROM PREMIXED POWDERS BY THE HOT PRESS PROCESS
    Konstanty, J.
    Tyrala, D.
    Radziszewska, A.
    ARCHIVES OF METALLURGY AND MATERIALS, 2009, 54 (04) : 1051 - 1058
  • [37] CURRENT PROBLEMS OF INVESTIGATING THE PROPERTIES OF MOLTEN, IRON-BASE ALLOYS
    YAVOISKII, VI
    YAVOISKII, AV
    STEEL IN THE USSR, 1987, 17 (03): : 114 - 118
  • [38] EFFECT OF METHODS OF HEATING DURING SINTERING ON THE PROPERTIES OF IRON-BASE POWDER MATERIALS
    NIKISHOV, NA
    BOGOLYUBOVA, IV
    NIKITINA, NV
    METAL SCIENCE AND HEAT TREATMENT, 1991, 33 (1-2) : 61 - 64
  • [39] Use of commercially pure hydrogen in the annealing and sintering of iron-base powder materials
    Ostrik, PN
    Belan, SI
    Gasik, MM
    POWDER METALLURGY AND METAL CERAMICS, 1995, 34 (3-4) : 194 - 197
  • [40] Equivalent Resistance in Pulse Electric Current Sintering
    张东明
    Journal of Wuhan University of Technology(Materials Science), 2002, (02) : 30 - 32
12345