2026-04-18T04:25:54Zhttps://riubu.ubu.es/oai/request

oai:riubu.ubu.es:10259/82972024-01-12T01:05:14Zcom_10259_6214com_10259_5086com_10259_2604col_10259_6215

00925njm 22002777a 4500 dc Preciado Calzada, Mónica author Bravo Díez, Pedro Miguel author Calaf Chica, José author Ballorca Juez, Daniel author 2019-03 During creep, magnesium alloys undergo microstructural changes due to temperature and stress. These alterations are associated with the evolution of the present phases at a microstructural level, creating different strain rates during primary and tertiary creep, and with the stability of the inter-metallic phase Mg17Al12 formed at these temperatures. In this paper, the results of creep testing of high-pressure die-cast AZ91 magnesium alloys are reported. During creep, continuous and discontinuous precipitates grow, which influences creep resistance. The creep mechanism that acts at these intermediate temperatures up to 150 ◦C is termed dislocation climbing. Finally, the influence of the type of precipitates on the creep behavior of alloys is determined by promoting the formation of continuous precipitates by a short heat treatment prior to creep testing. http://hdl.handle.net/10259/8297 10.3390/ma12060872 1996-1944 AZ91 Magnesium alloys Creep High pressure die casting Strain Rate during Creep in High-Pressure Die-Cast AZ91 Magnesium Alloys at Intermediate Temperatures