|
|
|
| INFLUENCE OF RARE EARTHS ON MECHANICAL BEHAVIOR AND SOLID-LIQUID COEXISTING ZONE OF Al-Cu ALLOYS DURING SOLIDIFICATION |
| LI Qingchun; Zeng Songyan; LIU Chi; ZHOU Bide;JIANG Zuling (Harbin Institute of Technolngy)(Manuscript received 12 April; 1985; revised manuscript 10 December; 1985) |
|
Cite this article:
LI Qingchun; Zeng Songyan; LIU Chi; ZHOU Bide;JIANG Zuling (Harbin Institute of Technolngy)(Manuscript received 12 April; 1985; revised manuscript 10 December; 1985). INFLUENCE OF RARE EARTHS ON MECHANICAL BEHAVIOR AND SOLID-LIQUID COEXISTING ZONE OF Al-Cu ALLOYS DURING SOLIDIFICATION. Acta Metall Sin, 1987, 23(2): 184-189.
|
|
|
Abstract The influence of La, Y, Ce and mischmetal on the mechanical behavior and solid-liquid coexisting zone of Al-Cu alloys during solidification has been investigated with equipment specially designed. An addition of rare earths will achieve to some extent lowering the quasi-solidus, widening the quasi-liquid region and narrowing the quasi-solid region. Rare earths enhance the strength around solidus and the rast of strength increase of the alloys remarkably. Moreover, they are able to decrease the temperature and increase the stress of hot cracking formation, as a result, decrease the tendency of hot cracking. The solubility of rare earths in α-Al is very low. The existing of them makes the size of dendrites fine and increases the interdendritic strength at the later stage of solidification
|
|
Received: 18 February 1987
|
1 于桂复,程家宁,金属科学与工艺 1983;2(3) :59
2 Wundelin R, Hoener K E. Giesserei-praxis 1977; (17) : 249
3#12
4 曾松岩,周彼德,李庆春,金属科学与工艺1983;2(3) :65
5 李庆春,曾松岩,刘驰,机械工程学报 1986;(2) :14 |
| No Suggested Reading articles found! |
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
Cited |
|
|
|
|
| |
Shared |
|
|
|
|
| |
Discussed |
|
|
|
|
