000086349 001__ 86349 000086349 005__ 20200716101549.0 000086349 0247_ $$2doi$$a10.1007/s11669-019-00755-7 000086349 0248_ $$2sideral$$a114935 000086349 037__ $$aART-2019-114935 000086349 041__ $$aeng 000086349 100__ $$aFan, Fujun 000086349 245__ $$aDiffusion Research in BCC Ti-Al-Zr Ternary Alloys 000086349 260__ $$c2019 000086349 5060_ $$aAccess copy available to the general public$$fUnrestricted 000086349 5203_ $$aDiffusion behavior in the BCC Ti-Al-Zr ternary alloys was experimentally investigated at 1273 K (1000 °C) and 1473 K (1200 °C) by means of the diffusion-couple technique. Upon the Whittle-Green and generalized Hall methods, the inter- and impurity diffusion coefficients were respectively extracted from the composition profiles acquired by the electron microprobe analysis (EPMA) and subsequently represented by the error function expansion. The extracted main interdiffusion coefficient D~AlAlTi increases with increasing the content of either Al or Zr, and the increase is appearing more considerably at the higher temperature. However, D~ZrZrTi was noticed to decrease with the increase of Al and Zr contents at 1273 K (1000 °C) while there is an upward trend at 1473 K (1200 °C). The impurity diffusion coefficients of Al in Ti-Zr binary alloys, DAl(Ti - Zr)*, and of Zr in Ti-Al binary alloys, DZr(Ti - Al)*, increase with increasing the Zr and Al contents respectively. A comparison of average main interdiffusion coefficient D~XXTi¯ made among ten Ti-Al-X ternary systems suggests that the Zr diffusion is most comparable to Cr and could operate via a vacancy-controlled mechanism. 000086349 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc-nd$$uhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/ 000086349 590__ $$a1.315$$b2019 000086349 591__ $$aMETALLURGY & METALLURGICAL ENGINEERING$$b43 / 79 = 0.544$$c2019$$dQ3$$eT2 000086349 591__ $$aCHEMISTRY, PHYSICAL$$b139 / 158 = 0.88$$c2019$$dQ4$$eT3 000086349 591__ $$aMATERIALS SCIENCE, MULTIDISCIPLINARY$$b254 / 314 = 0.809$$c2019$$dQ4$$eT3 000086349 592__ $$a0.529$$b2019 000086349 593__ $$aMetals and Alloys$$c2019$$dQ1 000086349 593__ $$aCondensed Matter Physics$$c2019$$dQ2 000086349 593__ $$aMaterials Chemistry$$c2019$$dQ2 000086349 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion 000086349 700__ $$aGu, Yuanyu 000086349 700__ $$aXu, Guanglong 000086349 700__ $$aChang, Hui 000086349 700__ $$0(orcid)0000-0001-6971-2047$$aCui, Yuwen 000086349 773__ $$g40, 5 (2019), 686-696$$pJ. Phase Equilib. Diffus.$$tJOURNAL OF PHASE EQUILIBRIA AND DIFFUSION$$x1547-7037 000086349 8564_ $$s1350697$$uhttps://zaguan.unizar.es/record/86349/files/texto_completo.pdf$$yVersión publicada 000086349 8564_ $$s92331$$uhttps://zaguan.unizar.es/record/86349/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada 000086349 909CO $$ooai:zaguan.unizar.es:86349$$particulos$$pdriver 000086349 951__ $$a2020-07-16-09:45:02 000086349 980__ $$aARTICLE