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000086480 0247_ $$2doi$$a10.1016/j.matdes.2019.108251
000086480 0248_ $$2sideral$$a114714
000086480 037__ $$aART-2020-114714
000086480 041__ $$aeng
000086480 100__ $$aChen, Fuwen
000086480 245__ $$aImproved fracture toughness by microalloying of Fe in Ti-6Al-4V
000086480 260__ $$c2020
000086480 5060_ $$aAccess copy available to the general public$$fUnrestricted
000086480 5203_ $$aThe widely used Ti–6Al–4V (TC4) titanium alloy has been modified through the micro-alloying of Fe. The microstructural features and mechanical properties of the designed alloy, TC4F, are compared with other alloys in Ti–6Al–4V class by combining experimental characterizations and thermodynamic calculations. TC4F alloy not only maintains strength, hardness, and elongation similar to baseline TC4 but also exhibits improved fracture toughness comparable to TC4_ELI and even superior to TC4_DT under the heat-treated condition. It opens up a new cost-reducing way to enhance fracture toughness in place of controlling interstitial contents, showing potential in engineering applications. The discerned mechanisms indicate that the trace addition of Fe gives rise to composition redistribution between V and Fe in the ß phase, boosts the lattice distortion and vibration, thereafter enhances Young''s modulus and fracture toughness. It has been validated and verified by experiments, thermodynamic calculations, and Hahn-Rosenfield empirical research. The enhanced fracture toughness also benefits from the kinked ß+a lamellar microstructure at crack tip as well as the improved fracture surface due to the Fe addition. The enlarged plastic zone, redirected crack propagation, and more dimples with even-distributed size additionally contribute to the improvement of fracture toughness.
000086480 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttp://creativecommons.org/licenses/by/3.0/es/
000086480 590__ $$a7.991$$b2020
000086480 591__ $$aMATERIALS SCIENCE, MULTIDISCIPLINARY$$b58 / 333 = 0.174$$c2020$$dQ1$$eT1
000086480 592__ $$a1.842$$b2020
000086480 593__ $$aMaterials Science (miscellaneous)$$c2020$$dQ1
000086480 593__ $$aMechanics of Materials$$c2020$$dQ1
000086480 593__ $$aMechanical Engineering$$c2020$$dQ1
000086480 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000086480 700__ $$aGu, Yulei
000086480 700__ $$aXu, Guanglong
000086480 700__ $$0(orcid)0000-0001-6971-2047$$aCui, Yuwen
000086480 700__ $$aChang, Hui
000086480 700__ $$aZhou, Lian
000086480 773__ $$g185 (2020), 108251 [14 pp.]$$tMATERIALS & DESIGN$$x0264-1275
000086480 85641 $$uhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85072898237&doi=10.1016%2fj.matdes.2019.108251&partnerID=40&md5=578b0eab27c71534f6168a3943780c13$$zTexto completo de la revista
000086480 8564_ $$s8400428$$uhttps://zaguan.unizar.es/record/86480/files/texto_completo.pdf$$yVersión publicada
000086480 8564_ $$s98986$$uhttps://zaguan.unizar.es/record/86480/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
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000086480 951__ $$a2023-01-26-09:53:55
000086480 980__ $$aARTICLE