Aluminum alloys are extensively employed in several industries, such as automobile, aerospace, and architecture, owing to their high specific strength and electrical and thermal conductivities. However, to meet the rising industrial demands, aluminum alloys must be designed with both excellent mechanical and thermal properties. Computer-aided alloy design is emerging as a technique for developing novel alloys to overcome these trade-off properties. Thus, the development of a new experimental method for designing alloys with high-throughput confirmation is gaining focus. A new approach that rapidly manufactures aluminum alloys with different compositions is required in the alloy design process. This study proposes a combined approach to rapidly investigate the relationship between the microstructure and properties of aluminum alloys using a direct energy deposition system with a dual-nozzle metal 3D printing process. Two types of aluminum alloy powders (Al-4.99Si-1.05Cu-0.47Mg and Al-7Mg) are employed for the 3D printing-based combined method. Nine types of Al-Si-Cu-Mg alloys are manufactured using the combined method, and the relationship between their microstructures and properties is examined.

1. 서 론
2. 실험방법
3. 실험결과 및 고찰
4. 결 론
감사의 글
References

• 송용욱(국민대학교 신소재공학부) | Yongwook Song (School of Materials Science and Engineering, Kookmin University, Seoul 02707, Republic of Korea)
• 김정준(국민대학교 신소재공학부) | Jungjoon Kim (School of Materials Science and Engineering, Kookmin University, Seoul 02707, Republic of Korea)
• 박수원(국민대학교 신소재공학부) | Suwon Park (School of Materials Science and Engineering, Kookmin University, Seoul 02707, Republic of Korea)
• 최현주(국민대학교 신소재공학부) | Hyunjoo Choi (School of Materials Science and Engineering, Kookmin University, Seoul 02707, Republic of Korea) Corresponding Author