cris.boxmetadata.label.title
Microstructure and mechanical properties of solid state recycled 4Cr5MoSiV (H11) steel prepared by powder metallurgy
cris.boxmetadata.label.dateissued
01 browse.startsWith.months.june 2021
cris.boxmetadata.label.accesslevel
open access
cris.boxmetadata.label.resourcetype
journal article
cris.boxmetadata.label.authors
Bhatta G.
De Los Santos Valladares L.
Liu X.
Ma Z.
Bustamante Domínguez A.G.
Moreno N.O.
ESPINOZA SUAREZ, SILVIA MARISEL
Barnes C.H.W.
Zhang D.
cris.boxmetadata.label.publisher
Elsevier B.V.
cris.boxmetadata.label.abstract
4Cr5MoSiV (H11) steel machining chips were crushed to a powder and then consolidated into discs by hot pressing under various consolidation parameters. The discs were subjected to modified spheroidizing annealing treatment, and their evolved microstructure, tensile mechanical properties and fracture behavior were studied. The microstructure consisted of α−Fe as a matrix, together with heterogeneously distributed non metallic inclusions from the chip-crushing step and precipitated secondary phases. The yield strength, fracture strength and elongation to fracture of the consolidated discs were determined to be in the range of 215∼264 MPa, 344∼415 MPa and 1.2∼2.6%, respectively. The strength of the recycled H11 steel was comparable with that of the ingot metallurgy (IM) H11 steel, but the tensile ductility of the former was significantly lower than that of the latter, being mainly caused by the fracture of the non-metallic inclusions along with the hard secondary phase particles in the IM H11 steel which leads to premature fracture of the samples. The Vickers hardness of the samples were in the range of 144∼194 HV being comparable to that of the IM counterpart. Factographs of the fracture surface demonstrated that the tensile test specimens fractured in a brittle fracture mode.
cris.boxmetadata.label.volume
10
cris.boxmetadata.label.language
English
cris.boxmetadata.label.ocdeknowledgeArea
Ingeniería de materiales
cris.boxmetadata.label.subjects
cris.boxmetadata.label.doi
cris.boxmetadata.label.scopusidentifier
2-s2.0-85119081461
cris.boxmetadata.label.source
Results in Materials
cris.boxmetadata.label.containerissn
2590048X
cris.boxmetadata.label.sponsor
This work was supported by the China Scholarship Council (CSC) , China, grant no. 2017GXZ026346 . The work in Peru was supported by the CONCYTEC program “Incorporación de Investigadores”, Peru, contrat No. 12–2019 – FONDECYT – BM – INC. INV.
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Directorio de Producción Científica
Scopus