Effect of Grain Size on the Mechanical Properties and Formability of AA8021 Aluminum Foil

Jin, Xiaojie; Zhao, Pizhi; Chen, Wei; Ma, Keping; Fu, Y.; Guo, Shuxiang; Feng, Dan

doi:10.1007/s11665-022-06989-w

Cited by 6 publications

(1 citation statement)

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“…Here, k y is a strengthening coefficient. [24] The effect of grain size distribution is investigated on AA8021 in another study [25] on the mechanical properties and deformation behavior using tensile tests and Erichsen cupping test, which are then characterized using different electron microscopic techniques. It is shown that with increasing the grain size, the yield and ultimate tensile strength as well as the Erichsen values decrease, which is related to the ratio of free surface to 3.…”

Section: Grain Boundary Strengtheningmentioning

confidence: 99%

Hot Sheet Metal Forming Strategies for High‐Strength Aluminum Alloys: A Review—Fundamentals and Applications

et al. 2023

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In the past decade, aluminum alloys have become important structural materials in the automotive industry, thanks to their low density, high strength, high fracture toughness, and good fatigue performance. However, an important limitation of aluminum alloys is their poor formability at room temperature; as a result, numerous studies have been conducted with the aim of developing forming techniques to overcome this and facilitate the forming of more complex‐shaped components. Following an overview on the metallurgical background of aluminum alloys, this article reviews recent developments in forming processes for aluminum alloys. The focus is on process variants at room temperature and at higher temperatures and on a new hot forming technique promising considerable improvements in formability. This review summarizes the influence of different process parameters on microstructures and mechanical properties. Particular emphasis is given to process design and to the underlying microstructural phenomena governing the strengthening mechanisms.

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Section: Grain Boundary Strengtheningmentioning

confidence: 99%