In:
Advanced Materials Research, Trans Tech Publications, Ltd., Vol. 284-286 ( 2011-7), p. 1588-1593
Abstract:
The Mg-3% Al melt was treated by carbon inoculation and Fe addition. The influence of Fe on the formation of nucleation was investigated. That Fe inhibited the grain refinement of the carbon-inoculated Mg-3%Al alloy or not was closely associated with the operating sequence of carbon inoculation and Fe addition. Under the condition of Fe addition firstly and then carbon inoculation, the Al 4 C 3 particles and the particles with duplex phase structure of Al 4 C 3 coated on Al-C-Fe or Al-Fe could be observed. Both kinds of particles should act as nucleating substrates for a-Mg grains, resulting in no obvious effect of Fe on refining efficiency of carbon inoculation. Under the contrary condition, the potency of Al 4 C 3 nucleating substrates was poisoned by transforming Al 4 C 3 into Al-C-Fe-rich intermetallic particles, resulting in grain-coarsening.
Type of Medium:
Online Resource
ISSN:
1662-8985
DOI:
10.4028/www.scientific.net/AMR.284-286
DOI:
10.4028/www.scientific.net/AMR.284-286.1588
Language:
Unknown
Publisher:
Trans Tech Publications, Ltd.
Publication Date:
2011
detail.hit.zdb_id:
2265002-7
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