Title
Semisolid structure for M2 high speed steel prepared by cooling slope Semisolid structure for M2 high speed steel prepared by cooling slope
Author
Faculty/Department
Faculty of Sciences. Physics
Publication type
article
Publication
Amsterdam ,
Subject
Physics
Source (journal)
Journal of materials processing technology. - Amsterdam
Volume/pages
210(2010) :12 , p. 1632-1635
ISSN
0924-0136
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Abstract
Effects of cooling slope angle and the temperature of molten metal on the globular structure of M2 high speed steel after holding at the semisolid state have been investigated. The globular structure was achieved by pouring the molten metal at 1595 °C on the ceramic cooling slope with the length of 200 mm and the angle of 25°. The globular structure of M2 high speed steel in the form of rolledannealed and as cast condition after holding at semisolid state has been achieved. The size of globular grains of cooling slope sample was smaller than that of the rolledannealed and as cast samples. Solid particles of rolledannealed sample after holding at semisolid state had better roundness compared with cooling slope sample. Dissolution of carbides in the austenite phase at grain boundaries leads to formation of globular particles in the semisolid state. MC-type and M6C-type eutectic carbides reprecipitate during cooling cycle along grain boundaries.
E-info
https://repository.uantwerpen.be/docman/iruaauth/211026/8bf0905dd1b.pdf