Intermetallic phases in Al-Mn alloys

Bahadur, Aruna (1988) Intermetallic phases in Al-Mn alloys. Journal of materials science, 23 (1). pp. 48-54.

Restricted to NML users only. Others may use ->



The intermetallic phases present in high-purity and commercial purity Al-Mn alloys(up to 2 Mn) in as-cast and heat-treated conditions were extracted electrolytically in 10% HCL in methanol solution and identified by X-ray diffraction. As iron is known to increase the coarses cast-intermetallic particles and to cause refinement of the grain size after recrystallization, different amounts of iron (up to 0.5%) were added and the resulting intermeta-llic phases were extracted and identified with and wihout hear treatment. The unidentified phase phase. a-Al (Mn, Fe)Si, reported by Sperry and others, was recognized as corre-sponding for ASTM card' number 6-0669 and the conditions favourable for its formation were determined. This phase may be responsible for refining the grain size after recry-stallization in commercial purity alloy as compared to high-purity Al-Mn alloys and may therefore be tried as an inoculant (by adding powdered compound to liquid alloys) for grain refining.

Item Type:Article
Official URL/DOI:
Uncontrolled Keywords:Al-Mn alloys; Metallurgy; mechanical properties; good corrosion resistance
Divisions:Director Office
ID Code:5249
Deposited By:Sahu A K
Deposited On:11 May 2012 17:14
Last Modified:08 Feb 2013 12:02
Related URLs:

Repository Staff Only: item control page