AE Analysis of Compression Test with Different Loading Direction of Unidirectional Solidification LPSO-Mg Alloys

作者：Muto Yuki^*; Shiraiwa Takayuki; Enoki Manabu

来源：Journal of the Japan Institute of Metals, 2016, 80(11): 697-701.

DOI：10.2320/jinstmet.J2016025

• acoustic emission
• long-period-stacking-orderd (LPSO) structures
• kink deformation
• clustering

Long. period Stacking ordered (LPSO) Mg alloys were focused on owing to its high properties. In this study, compression tests of unidirectional solidification (DS) Mg85Y6Zn9 were carried out with AE measurement. The three type specimens of load direction to solidification direction were manufactured for estimation of anisotropy. The continuous AE clustering analysis divided the AE waves measured in one type specimen into three clusters. By compared with the observation results and clustering results, a cluster was considered as the AE waves of noise and one of the other two clusters was considered as the AE waves of kink deformation. The results showed the possibility of evaluating the effect of anisotropy and the deformation mechanism of LPSO-Mg alloys.

• 出版日期2016