Stretch Formability of an AZ61 Alloy Plate Prepared by Multi-Pass Friction Stir Processing

Autor: Haolin Liu, Daolun Chen, Datong Zhang, Dongyang Li, Liu Yifei, Jielin Lin, Limei Kang, Xicai Luo
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Materials
Volume 14
Issue 12
Materials, Vol 14, Iss 3168, p 3168 (2021)
ISSN: 1996-1944
DOI: 10.3390/ma14123168
Popis: The stretch formability behavior of an AZ61 magnesium alloy plate produced by multi-pass friction stir processing (M-FSP) was investigated, with the applied load vs. displacement curves recorded during Erichsen cupping tests at different punching speeds at room temperature. The stretch formability of M-FSP AZ61 magnesium alloy was significantly enhanced, compared with that of its cast counterpart. The highest Erichsen index of 3.7 mm was obtained at a punching speed of 0.1 mm/min. The improved stretch formability was mainly attributed to the grain refinement stemming from the M-FSP and the presence of extension twinning to accommodate deformation during Erichsen cupping testing.
Databáze: OpenAIRE
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