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Optimization of Two-Stage Hybrid Forming Process via Quantitative Assessment of Mechanical Properties in AA5052
Sang Soo Lee, Seon Du Choi, Ho Geun Shin, Suman Timilsina, Seong Min Jang, Young Seon Lee, YongNam Kwon, Ji Sik Kim
Korean J. Met. Mater. 2022;60(5):391-399.   Published online 2022 Apr 22
DOI: https://doi.org/10.3365/KJMM.2022.60.5.391

Superplastic forming (SPF) is a promising approach used for manufacturing parts with complex geometries, especially in the automotive, aerospace, and marine industries. However, the wider use of this method is limited by issues of low forming rate, high-temperature requirement, non-uniform thickness distribution, and expensive base materials. The two-stage hybrid forming..... More

Microstructure and High Temperature Plastic Deformation Behavior of Al-12Si Based Alloy Fabricated by an Electromagnetic Casting and Stirring Process
전자기주조법으로 제조된 Al-12Si계 합금의 미세조직 및 고온 소성변형 거동
Kyung-Soo Jeon, Heung-Ryeol Roh, Mok-Soon Kim, Jong-Ho Kim, Joon-Pyo Park
전경수, 노흥렬, 김목순, 김종호, 박준표
Korean J. Met. Mater. 2017;55(6):386-395.   Published online 2017 Jun 1
DOI: https://doi.org/10.3365/KJMM.2017.55.6.386

An as-received EMC/S (electromagnetic casting and stirring)-processed Al-12Si based alloy billet was homogenized to examine its microstructure and high temperature plastic deformation behavior, using compressive tests over the temperature range from 623 to 743 K and a strain rate range from 1.0×10-3 to 1.0×100s-1. The results were compared with samples..... More

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