Investigation of transformation of ferrous phases in 6XXX alloys during homogenizing annealing
P. Bryantsev, M. Samoshina
Feb 20, 2012
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IOP Conference Series: Materials Science and Engineering
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Key Takeaway Key Takeaway: Quantitative phase transformation analysis can estimate the completeness of homogenizing annealing in 6XXX alloys, improving extrusion rate and surface quality.
Abstract
The only operation of heat treatment of 6XXX alloys before extrusion is homogenizing annealing. The presence of needle particles of β-Al5FeSi in a billet for extrusion negatively affects the limit extrusion rate and surface quality of extruded products. Passage of the phase transformation of ferrous phases is the main limiting factor in the length of homogenizing annealing. In this work the method of quantitative phase transformation analysis is proposed for estimation the completeness of the homogenizing annealing.
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