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Successive Boronizing and Austempering for GGG-40 Grade Ductile Iron 被引量:4

Successive Boronizing and Austempering for GGG-40 Grade Ductile Iron
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摘要 Boronizing and austempering were successively applied to a GGG-40 grade ductile iron in order to combine the advantages of both process in a single treatment. This new procedure formed a 30 μm thick boride layer on the surface with subsurface matrix structure consisted of acicular ferrite and retained austenite. Reciprocating wear tests showed that successive boronizing and austempering exhibited considerably higher wear resistance than conventional boronizing having a subsurface matrix structure consisting of ferrite and pearlite. Boronizing and austempering were successively applied to a GGG-40 grade ductile iron in order to combine the advantages of both process in a single treatment. This new procedure formed a 30 μm thick boride layer on the surface with subsurface matrix structure consisted of acicular ferrite and retained austenite. Reciprocating wear tests showed that successive boronizing and austempering exhibited considerably higher wear resistance than conventional boronizing having a subsurface matrix structure consisting of ferrite and pearlite.
出处 《Journal of Iron and Steel Research International》 SCIE EI CAS CSCD 2009年第2期50-54,共5页
关键词 austempered ductile iron BORONIZING heat treatment wear austempered ductile iron boronizing heat treatment wear
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参考文献11

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