Effect of aging temperature on the hardening behavior and precipitation evolution of Mg-10Gd alloy

Kang, Wei; Xiao, Lirong; Gao, Bo; Liu, Yi; Li, Lei; Sun, Wei; Sui, Yudong; Zhou, Hao; Zhao, Yonghao

doi:10.1016/j.matchar.2022.112580

Cited by 16 publications

(1 citation statement)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The preparation of high-quality magnesium alloy sheets typically necessitates multiple rolling processes, with the impact of rolling shape predominantly influenced by the inherent properties of the metal and the specifics of the rolling process [23][24][25]. In pursuit of enhancing the mechanical of magnesium alloys, Mg-RE (Magnesium-Rare earth) alloys have emerged as a high-performance category with promising application prospects, capturing considerable research attention in recent years [26][27][28][29][30]. Scholars have delved into various facets of Mg-RE alloy rolling, investigating its processes, scrutinizing the influence of rolling on the alloy's microstructure and mechanical properties, and ultimately yielding high-strength magnesium alloy plates [31].…”

Section: Introductionmentioning

confidence: 99%

Study on damage and cracking of Mg-Gd-Y-Ag-Zr alloys during rolling based on experimental and finite element method

Ning,

Wang,

et al. 2023

Mater. Res. Express

View full text Add to dashboard Cite

Edge cracking, a common issue encountered during the rolling of magnesium alloys, holds substantial importance in determining the success of subsequent finishing processes. It serves as a pivotal parameter for evaluating the formability of rolled plates. In this particular investigation, researchers concentrated on understanding the behavior of edge cracks within the solid solution magnesium alloy designated as Mg-10Gd-3Y-2Ag-0.4Zr (expressed in weight percentage as GWQ1032K). To support this analysis, one delved into the thermal rheological characteristics of the magnesium alloy and established a mathematical relationship connecting rheological stress, strain rate, and temperature. This served as the foundation for a constitutive model tailored to the alloy. Furthermore, practical rolling experiments were conducted to examine how reductions in thickness influenced the morphology of edge cracks in rolled plates. The study also explored shifts in stress–strain behavior and microstructural changes during the deformation process. The results highlighted the substantial impact of compression levels on the magnesium alloy’s anisotropic behavior, subsequently influencing the shape of the resultant plate and the stress–strain characteristics observed during deformation. Significantly, as the rolling reduction increased, a notable increase in heat generation due to the plastic deformation of the magnesium alloy plate was observed. This heightened heat played a key role in dynamic recrystallizationand and facilitating the formation of the brittle Mg5(RE, Ag) phase. Consequently, minimizing the generation of this brittle phase emerged as a critical factor in effectively managing and controlling edge cracks in the rolling process.

show abstract