Yoo Hyo-Sang, Kim Yong-Ho, Lee Seong-Hee, Son Hyeon-Taek
Automotive Components and Materials R&D Group, Korea Institute of Industrial Technology, 1110-9 Oryong-dong, Buk-gu, Gwangju, 61012, Republic of Korea.
Department of Materials Science and Engineering, Mokpo National University, 1666, Yeongsan-ro, Cheonggye-myeon, Muan-gun, Jeollanam-do, 58554, Republic of Korea.
J Nanosci Nanotechnol. 2019 Apr 1;19(4):2314-2318. doi: 10.1166/jnn.2019.16001.
In this work, Al-0.15Si-0.2Fe-0.3Cu-0.9Mn alloys with different Zn addition (0, 0.15 and 0.3 wt%) were melted and extruded at 200 °C. The effect of Zn on the microstructure, texture evolution and mechanical properties of Al-0.15Si-0.2Fe-0.3Cu-0.9Mn alloys was investigated using scanning electron microscope (SEM), equipped with energy-dispersive X-ray spectrometry (EDS) and electron backscatter diffraction (EBSD) and in the present study. In order to evaluate the mechanical properties, we implemented the tensile tests by a universal material test machine. Al-0.15Si-0.2Fe- 0.3Cu-0.9Mn-Z resulted in the formation of Al-(Fe, Mn)-Si and Al-(Fe, Mn) intermetallic compounds. The formation of the intermetallic compound and this phase was broken in to small particles during extrusion. The ultimate strength and elongation of the as-extruded Al-0.15Si-0.2Fe-0.3Cu- 0.9Mn alloy were 96.51 MPa and 34.01%, while those of the Al-0.15Si-0.2Fe-0.3Cu-0.9Mn-0.3Zn alloy were 99.08 MPa and 36.21%, respectively. Al-0.15Si-0.2Fe-0.3Cu-0.9Mn alloys with Zn addition resulted in improving the strength with no reduction in elongation.
在本研究中，将添加不同锌含量（0、0.15和0.3 wt%）的Al-0.15Si-0.2Fe-0.3Cu-0.9Mn合金在200℃下进行熔化和挤压。使用配备能量色散X射线光谱仪（EDS）和电子背散射衍射（EBSD）的扫描电子显微镜（SEM）研究了锌对Al-0.15Si-0.2Fe-0.3Cu-0.9Mn合金的微观结构、织构演变和力学性能的影响。为了评估力学性能，我们使用万能材料试验机进行了拉伸试验。Al-0.15Si-0.2Fe-0.3Cu-0.9Mn-Z导致形成Al-(Fe, Mn)-Si和Al-(Fe, Mn)金属间化合物。在挤压过程中，金属间化合物和该相的形成被破碎成小颗粒。挤压态Al-0.15Si-0.2Fe-0.3Cu-0.9Mn合金的极限强度和伸长率分别为96.51 MPa和34.01%，而Al-0.15Si-0.2Fe-0.3Cu-0.9Mn-0.3Zn合金的极限强度和伸长率分别为99.08 MPa和36.21%。添加锌的Al-0.15Si-0.2Fe-0.3Cu-0.9Mn合金在不降低伸长率的情况下提高了强度。
