Ductilizing Mo alloys via nanoparticle-stabilized microstructural hierarchy

Autor:	Pengming Cheng, Shenghua Wu, Peng Zhang, Jie Kuang, Hui Wang, Gang Liu, Jun Sun
Jazyk:	angličtina
Rok vydání:	2023
Předmět:	Mo alloys ductility nanoparticles microstructural hierarchy deformation mechanism Materials of engineering and construction. Mechanics of materials TA401-492
Zdroj:	Materials Research Letters, Vol 11, Iss 1, Pp 90-98 (2023)
Druh dokumentu:	article
ISSN:	21663831 2166-3831
DOI:	10.1080/21663831.2022.2121184
Popis:	Swaged Mo-xLa2O3 alloys (x = 0, 0.3, and 0.6 wt.%) were subjected to different annealing temperatures (Ta), in order to demonstrate the Ta-sensitive La2O3 effect on microstructural evolution and tensile ductility. Although coarse La2O3 particles were detrimental to ductility, nanosized La2O3 particles were found to increase the ductility by highly stabilizing the deformation-induced hierarchical microstructures of lamellar elongated grains with low-angle grain boundaries inside. A competition between the two opposite effects derived from the La2O3 addition led to an unexpected x-dependence of ductility upon different Ta.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/f004a591af4c49d08467f8b2d24b6fea Zobrazit plný text záznamu View record in DOAJ