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dc.contributor.authorHuang, E-Wenen_US
dc.contributor.authorLee, Soo Yeolen_US
dc.contributor.authorJain, Jayanten_US
dc.contributor.authorTong, Yangen_US
dc.contributor.authorAn, Keen_US
dc.contributor.authorTsou, Nien-Tien_US
dc.contributor.authorLam, Tu-Ngocen_US
dc.contributor.authorYu, Dunjien_US
dc.contributor.authorChae, Hobyungen_US
dc.contributor.authorChen, Shi-Weien_US
dc.contributor.authorChen, Shih-Minen_US
dc.contributor.authorChou, Hung-Shengen_US
dc.date.accessioned2019-06-03T01:08:34Z-
dc.date.available2019-06-03T01:08:34Z-
dc.date.issued2019-06-01en_US
dc.identifier.issn0966-9795en_US
dc.identifier.urihttp://dx.doi.org/10.1016/j.intermet.2019.03.004en_US
dc.identifier.urihttp://hdl.handle.net/11536/151948-
dc.description.abstractIn the present work, the tensile properties of 15-5 PH steel fabricated by selective laser melting (SLM) were examined with respect to the transient austenite phase. Compared with the 8%-transient-phase sample, the 18%-transient-phase one shows higher ultimate tensile strength and relatively low yield strength, as well as hardening behavior. We conducted in-situ neutron-diffraction study to examine the microstructure evolution for mechanistic understanding. After applying the external load, most non-equilibrium, retained austenite in the 8% transient-phase sample transforms before the yield strength, whereas in the 18%-transient-phase sample only 50% of the austenite transforms. Accompanying with the phase transformation, a decrease in the dislocation density and the dislocation strain energy-assisted phase transformation of the ferrite phase are found in the 8%-transient-phase sample even before yielding, which, however, is not the case in the 18%-transient-phase sample. The study demonstrates the SLM enables tuning the amount of transient-phase ratio and coherency between phases to realize a mechanical property control for additive manufactured steel.en_US
dc.language.isoen_USen_US
dc.subjectNeutron diffractionen_US
dc.subjectAdditive manufacturingen_US
dc.subjectSelective laser meltingen_US
dc.subjectStainless steelen_US
dc.subjectAnisotropyen_US
dc.titleHardening steels by the generation of transient phase using additive manufacturingen_US
dc.typeArticleen_US
dc.identifier.doi10.1016/j.intermet.2019.03.004en_US
dc.identifier.journalINTERMETALLICSen_US
dc.citation.volume109en_US
dc.citation.spage60en_US
dc.citation.epage67en_US
dc.contributor.department材料科學與工程學系zh_TW
dc.contributor.departmentDepartment of Materials Science and Engineeringen_US
dc.identifier.wosnumberWOS:000466821500008en_US
dc.citation.woscount0en_US
Appears in Collections:Articles