THE MICROSTRUCTURE AND PROPERTIES OF HIGH-PRESSURE GAS-ATOMIZED AL-LI-HF ALLOY POWDERS

被引：7
|
作者：
NORMAN, AF
TSAKIROPOULOS, P
机构：
[1] Department of Materials Science and Engineering, University of Surrey, Guildford
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 1991年 / 134卷
关键词：
D O I：
10.1016/0921-5093(91)90942-G
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Powders of the Al-2.2Li-1.23Hf alloy were prepared by high pressure gas atomization and the sub-45-mu-m size fraction was consolidated by extrusion. Continuous and discontinuous precipitation of the alpha' (Al3Li(x)Hf1-x) phase occurred during solution treatment at 450-degrees-C. The delta' phase precipitated during ageing at 190-degrees-C either at the alpha'-matrix interface or as fine delta' particles after prolonged ageing. Peak strength was reached after 1 h at 190-degrees-C. The contributions of the various strengthening mechanisms have been calculated.
引用
收藏
页码：1144 / 1147
页数：4
相关论文
共 50 条
  • [1] Morphology and Microstructure of Gas-Atomized Hypereutectic Al-Si Alloy Powders
    Cai Zhiyong
    Wang Richu
    Peng Chaoqun
    Xie Lichuan
    Zhang Chun
    Feng Yan
    RARE METAL MATERIALS AND ENGINEERING, 2016, 45 (04) : 1017 - 1022
  • [2] Microstructure and tensile properties of a continuous-cast Al-Li-Hf alloy
    Rangel-Ortiz, T
    Alcala, FC
    Hirata, VML
    Frias-Flores, J
    Araujo-Osorio, JE
    Dorantes-Rosales, HJ
    Saucedo-Muñoz, ML
    JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 2005, 159 (02) : 164 - 168
  • [3] Microstructures and mechanical properties of Mg–Zn–Y alloy consolidated from gas-atomized powders using high-pressure torsion
    Eun Yoo Yoon
    Dong Jun Lee
    Taek-Soo Kim
    Hong Jun Chae
    P. Jenei
    Jeno Gubicza
    Tamas Ungár
    Milos Janecek
    Jitka Vratna
    Sunghak Lee
    Hyoung Seop Kim
    Journal of Materials Science, 2012, 47 : 7117 - 7123
  • [4] PERFORMANCE OF GAS-ATOMIZED SPRAY SCRUBBERS AT HIGH-PRESSURE
    YUNG, SC
    CALVERT, S
    DUNCAN, M
    JOURNAL OF THE AIR POLLUTION CONTROL ASSOCIATION, 1984, 34 (07): : 736 - 742
  • [5] Microstructures and mechanical properties of Mg-Zn-Y alloy consolidated from gas-atomized powders using high-pressure torsion
    Yoon, Eun Yoo
    Lee, Dong Jun
    Kim, Taek-Soo
    Chae, Hong Jun
    Jenei, P.
    Gubicza, Jeno
    Ungar, Tamas
    Janecek, Milos
    Vratna, Jitka
    Lee, Sunghak
    Kim, Hyoung Seop
    JOURNAL OF MATERIALS SCIENCE, 2012, 47 (20) : 7117 - 7123
  • [6] Effect of pre-annealing on microstructure and compactibility of gas-atomized Al-Si alloy powders
    Cai, Zhi-yong
    Zhang, Chun
    Wang, Ri-chu
    Peng, Chao-qun
    Qiu, Ke
    Wang, Nai-guang
    TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA, 2016, 26 (09) : 2355 - 2362
  • [7] Phase-Field Simulation of Microstructure Formation in Gas-Atomized Al-Cu-Li-Mg Powders
    Phyu, May Pwint
    Adjei-Kyeremeh, Frank
    Suwanpinij, Piyada
    Raffeis, Iris
    Apel, Markus
    Buehrig-Polaczek, Andreas
    MATERIALS, 2023, 16 (04)
  • [8] GENERATION AND CONSOLIDATION OF GAS-ATOMIZED MAGNESIUM ALLOY POWDERS
    KNOOP, FM
    KAINER, KU
    METALL, 1994, 48 (06): : 461 - 465
  • [9] RAPID SOLIDIFICATION OF AL-HF ALLOYS - ANALYSIS OF STRENGTH OF EXTRUDED HIGH-PRESSURE GAS ATOMIZED POWDERS
    NORMAN, AF
    TSAKIROPOULOS, P
    INTERNATIONAL JOURNAL OF RAPID SOLIDIFICATION, 1992, 7 (02): : 109 - 126
  • [10] Microstructure and shape memory characteristics of gas-atomized TiNi powders
    Kim, Yeon-Wook
    Jeon, Kyeong-Su
    Yun, Young-Mok
    Nam, Tae-Hyun
    PHYSICA SCRIPTA, 2010, T139
12345