Simulation-Based Investigation of Crack Formation in Forged MB15 Magnesium Alloy

Lulu  Song; Dongmei  Liu; Jie  Yuan; Ruihuan  Tian; Liying  Jin

doi:10.26689/jera.v8i1.5936

Lulu Song Metrological Physics and Chemistry Center, AVIC Aerospace Life-Support Industries, Ltd., Xiangyang 441003, Hubei Province, China
Dongmei Liu Metrological Physics and Chemistry Center, AVIC Aerospace Life-Support Industries, Ltd., Xiangyang 441003, Hubei Province, China
Jie Yuan Metrological Physics and Chemistry Center, AVIC Aerospace Life-Support Industries, Ltd., Xiangyang 441003, Hubei Province, China
Ruihuan Tian Metrological Physics and Chemistry Center, AVIC Aerospace Life-Support Industries, Ltd., Xiangyang 441003, Hubei Province, China
Liying Jin Xiangyang Key Laboratory of Intelligent Manufacturing and Machine Vision, Hubei University of Arts and Science, Xiangyang 441053, Hubei Province, China

DOI: https://doi.org/10.26689/jera.v8i1.5936

Keywords: MB15, Forging die, Crack, Deformation temperature

Abstract

In the process of riveting an MB15 forging die, cracks were discovered emerging along the longitudinaldirection and near the riveting hole. Through fracture analysis, microscopic observation, energy spectrum analysis,metallographic examination, and hardness test, the properties and causes of the cracks are discussed. The results indicatethat the cracking type is intergranular brittle cracking, occurring during the forging stage. Furthermore, the recrystallizationat the crack site is found to be incomplete, which is attributed to the low deformation temperature.

References

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