|
|
|
| AN ELECTRON MICROSCOPE OBSERVATION ON THE DISTRIBUTION OF MnS PRECIPITATES IN GRAIN ORIENTED 3％ Si-IRON |
| Chen Yi-zhi Ma Dai Ge Ming Wang E-shen (Beiiing Institute of Iron and Steel Research) |
|
Cite this article:
Chen Yi-zhi Ma Dai Ge Ming Wang E-shen (Beiiing Institute of Iron and Steel Research). AN ELECTRON MICROSCOPE OBSERVATION ON THE DISTRIBUTION OF MnS PRECIPITATES IN GRAIN ORIENTED 3％ Si-IRON. Acta Metall Sin, 1978, 14(1): 33-116.
|
|
|
Abstract The morphologies and distributions of MnS precipitates in grain oriented 3％ Si-Fe during the early stage of the secondary recrystallization have been examined by electron microscope. The lowest temperature at which the breakdown of primary grain boundary inhibition provided by MnS precipitates could occur was found to be about 1000℃ for common grain oriented 3％ Si-Fe. The necessary condition to obtain stabilized primary grain matrix was that the average size of original distribution field of MnS particles in the as-decarburized state approaches the Zener critical size of particles below which effective inhibition action occurs. It was found that the breakdown of MnS precipitates inhibition could not be related to the distribution characteristics of coarsenning particle field. The breakdown of the precipitates inhibition action upon primary grain boundary above 1000℃ might be ascribed to the complete dissolving of the precipitates below Zener critical size at this temperature.
|
|
Received: 18 January 1978
|
[1] Swift, W. M., Met. Trans., 4 (1973) , 841．
[2] ibid, 4 (1973) , 153．
[3] Gladman, T., Proc. Roy. Soc., Ser. A294 (1966) , 298 |
| No Suggested Reading articles found! |
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
Cited |
|
|
|
|
| |
Shared |
|
|
|
|
| |
Discussed |
|
|
|
|
