A study on laser reaction sintering of Cu-Al system powder compacts
-
1.
Key Laboratory of Automobile Materials of Ministry of Education, Department of Materials Science and Engineering, Jilin University, Changchun, 130025 China
-
Corresponding author:
HU Jian-Dong, hjd@email.jlu.edu.cn
;
-
Received Date:
2004-01-05
-
Abstract
Characteristics of Cu-Al powder alloys of reaction laser sintering are investigated by study on variation process of sintering temperature,transformation of product phase,densification behavior and hardness of samples.It is showed that under laser power 800W and irradiation time 16s,reaction of sample penetrates deeply,characterization of serious and rapid propagating sintering appers,and phases were formed within short time of reaction stage during laser heating.All of the samples shrinks,and metastable martensite(M) Cu3Al is formed in Cu75Al25 alloy.
-
-
References
[1]
|
DECKARD C R. Method and apparatus for producing parts by selective sintering [P]. USA Patent:4863538,1989-09-05. |
[2]
|
TANG Y,FUH J Y H,LOH H T et al. Direct laser sintering of a silica sand [J]. Materials Design,2003,24:623~629. |
[3]
|
WANG X H, FUH J Y H,WONG Y S. Formation of copper-based metal part via direct laser sintering [J]. Advanced Materials Processing Ⅱ,2003(4):273~276. |
[4]
|
GUO Z X, HU J D,ZHOU Zh F. Laser sintering of Cu-Sn-C system P/M alloys [J]. J Material Science, 1999,34:5403~5406. |
[5]
|
SHEN P, HU J D, GUO Z X. A study on laser sintering of Fe-Cu powder compacts[J]. Metallurgical and Materials Transactions, 1999,A30:2229~2235. |
[6]
|
SHEN P,GUO Z X, HU J D. Study on laser ignition of Ni-33.3at% power compacts [J]. Scripta Materials,2000,43:893~898. |
[7]
|
MUNIR Z A,ANSELMI-TAMBURINI U. Self-propagating exothermic reaction:the synthesis of high-temperature materials by combustion[J]. Materials Science Report, 1989,3:277~365. |
[8]
|
SIKKA V K,DEEVI S C,VOUGHT J D. Exo-Melt:a commercially viable process [J]. Advance Materials Processing, 1995,6:29~31. |
[9]
|
SIKKA V K,WILKENING D,LIEBETRAU J. Melting and casting of FeAl-based cast alloy [J]. Mater Sci Engng, 1998, A258:229~235. |
[10]
|
MOORE J J,FENG H J. Combustion synthesis of advanced materials (Part Ⅰ)——Reaction parameters [J]. Progress Material Science,1995,39:243~273. |
[11]
|
WANG L L, MUNIR Z A, HOLT J B. The combustion synthesis of copper aluminides [J]. Metallurgical Transactions, 1990, B21:567~577. |
[12]
|
MITANI H,SUZUKI M. Sintered High damping alloy of Nickel-Aluminum/Bronze [J]. Powder Metallurgical International, 1979, 11(4):183~185. |
-
-
Proportional views
-