Low cycle fatigue behavior of magnesium matrix nanocomposite at ambient and elevated temperatures

Effect of nano-clay addition and heat-treatment on tensile and stress-controlled low-cycle fatigue behaviors of aluminum-silicon alloy: Effect of nano-clay addition and heat-treatment

“…This positive mean strain increased as the stress amplitude increased. That was in an agreement with the results in the literature [18,19]. The addition of nano-particles and the heat treatment changed the mean strain response of the material completely.…”

“…However, the LCF lifetime reduced as a result of the limited slip distance of dislocations caused by hard particles. Jabbari et al [18] conducted strain-controlled LCF experiments on extruded AZ31B magnesium alloy reinforced by nano-Al2O3 particles at different temperatures. They indicated that although the mechanical properties of the material degraded at elevated temperatures, the fatigue lifetime increased as a result of ductility enhancement.…”

“…Through the above literature review, studies demonstrated the advantage of nano-particles addition [5][6][7][15][16][17][18] and the heat treatment [15,16] on mechanical and fatigue properties improvement of metallic materials. Regardless of the little investigations that were carried out on the strain-controlled LCF behavior of nano-composites [15][16][17][18], there was only one investigation [29] focusing on stress-controlled LCF behavior of metal matrix nano-composites to the author's best knowledge.…”

“…Through the above literature review, studies demonstrated the advantage of nano-particles addition [5][6][7][15][16][17][18] and the heat treatment [15,16] on mechanical and fatigue properties improvement of metallic materials. Regardless of the little investigations that were carried out on the strain-controlled LCF behavior of nano-composites [15][16][17][18], there was only one investigation [29] focusing on stress-controlled LCF behavior of metal matrix nano-composites to the author's best knowledge. The promising results of such loading conditions in micro-composites [27][28] and also fewer studies on stresscontrolled LCF behavior of aluminum alloys [21][22][23][24][25][26] in comparison to other metallic materials, motivated the present investigation to be made.…”

Cyclic deformation behavior of Mg–SiC nanocomposites on the macroscale and nanoscale

“…5 In contrast to cyclic nanoindentation, a large number of macrofatigue tests has been published for Mg alloy composites, for example, Hassan et al, 8 including Mg alloy-SiC composites, 13,14 and pure Mg nanocomposites. 3,[15][16][17][18][19] On the macro level, constant amplitude (CAT) and load increase tests (LIT) are often used to investigate the complex processes during fatigue loading. Specifically, LIT are useful for estimating the fatigue endurance limit and cyclic stress strain curves, when only a small number of samples is available as previously shown for a variety of materials, also for Mg alloys.…”