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In situ heat treatment in selective laser melted martensitic AISI 420 stainless steels

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dc.contributor.author Krakhmalev, P.
dc.contributor.author Yadroitsava, I
dc.contributor.author Fredriksson, G
dc.contributor.author Yadroitsev, I
dc.date.accessioned 2018-08-21T05:50:55Z
dc.date.available 2018-08-21T05:50:55Z
dc.date.issued 2015
dc.identifier.issn 0261-3069
dc.identifier.issn 0264-1275
dc.identifier.uri http://hdl.handle.net/11462/1555
dc.description Published Article en_US
dc.description.abstract The article explores an evolution of a microstructure in AISI 420martensitic stainless steel during selective laser melting. Several upper layers had hardness of 750 HV and contained 21±12 vol.% austenite phase. The final bulk microstructure consisted of thermally decomposed martensitewith hardness of 500–550HV and unusually high, 57±8 vol.%,amount of austenite. Obtained results indicate that duringmanufacturing a partitioning and austenite reversion took place, owing to the thermal cycling of the inner regions duringmanufacturing. Numerical simulation was found plausible to analyze and explain thermally activated processes that occurred in situ. Results of numerical simulation of the thermal cycles in dependence on the processing parameters suggested a possibility to control the thermal processes by variation of the laser energy input. en_US
dc.format.extent 981 574 bytes, 1 file
dc.format.mimetype Application/PDF
dc.language.iso en_US en_US
dc.publisher Materials and Design en_US
dc.relation.ispartofseries Volume 87;
dc.subject Microstructure en_US
dc.subject Martensitic stainless steel en_US
dc.subject In situ heat treatment en_US
dc.subject Selective laser melting en_US
dc.title In situ heat treatment in selective laser melted martensitic AISI 420 stainless steels en_US
dc.type Article en_US

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