Effect of Rare Earth La and Ce on the Microstructure,Mechanical Properties,and Thermal Conductivity of Al-3Si-0.4Cu-1.0Fe Die Casting Aluminum Alloy AITranslate
Abstract AITranslate
In order to improve the thermal conductivity and mechanical properties of Al-Si based die casting aluminum alloys,the effects of La and Ce on microstructure,thermal conductivity and mechanical properties of Al-3Si-0.4Cu-1.0Fe die casting aluminum alloy were investigated using metallographic microscope,SEM,EDS,universal electronic tensile testing machine,and laser conductometer.The results indicate that the rare earth elements of La and Ce refine the alloy grains,transformingα-Al grains from dendrite to cellular morphology,and reducing the average secondary dentritic arm spacing.Meanwhile,the two elements also modify the eutectic Si phase to result in a uniform distribution of fine fibrous morphology.When the added contents of La and Ce are both 0.1%,the thermal conductivity,tensile strength and elongation after fracture are 167.62 W/(m·K),201.0 MPa,and 14.56%,respectively.Compared with the sample without rare earth elements,these values are increased by 11.19%,27.38%,and 246.67%.
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Basic Information:
DOI：
Chinese Library Classification Number:TG146.21[金属学及工艺—金属材料]
Citation Information:
In order to improve the thermal conductivity and mechanical properties of Al-Si based die casting aluminum alloys,the effects of La and Ce on microstructure,thermal conductivity and mechanical properties of Al-3Si-0.4Cu-1.0Fe die casting aluminum alloy were investigated using metallographic microscope,SEM,EDS,universal electronic tensile testing machine,and laser conductometer.The results indicate that the rare earth elements of La and Ce refine the alloy grains,transformingα-Al grains from dendrite to cellular morphology,and reducing the average secondary dentritic arm spacing.Meanwhile,the two elements also modify the eutectic Si phase to result in a uniform distribution of fine fibrous morphology.When the added contents of La and Ce are both 0.1%,the thermal conductivity,tensile strength and elongation after fracture are 167.62 W/(m·K),201.0 MPa,and 14.56%,respectively.Compared with the sample without rare earth elements,these values are increased by 11.19%,27.38%,and 246.67%.
quote
| GB/T 7714-2015 | [1] GAN Pei-yuan, WEI De-shi, WEI Shi-qang, et al. Effect of Rare Earth La and Ce on the Microstructure,Mechanical Properties,and Thermal Conductivity of Al-3Si-0.4Cu-1.0Fe Die Casting Aluminum Alloy[J]. Rare Metals and Cemented Carbides, 2023(5): 50-56. |
| MLA | [1] GAN Pei-yuan, et al., "Effect of Rare Earth La and Ce on the Microstructure,Mechanical Properties,and Thermal Conductivity of Al-3Si-0.4Cu-1.0Fe Die Casting Aluminum Alloy." Rare Metals and Cemented Carbides, no. 5, 2023, pp. 50-56. |
| APA | [1] GAN Pei-yuan, WEI De-shi, WEI Shi-qang, QIN Wen-zhong, PENG Jian-fei, & ZENG Jie. (2023). Effect of Rare Earth La and Ce on the Microstructure,Mechanical Properties,and Thermal Conductivity of Al-3Si-0.4Cu-1.0Fe Die Casting Aluminum Alloy. Rare Metals and Cemented Carbides(5), 50-56. |
| IEEE | [1] GAN Pei-yuan, WEI De-shi, WEI Shi-qang, QIN Wen-zhong, PENG Jian-fei, and ZENG Jie, "Effect of Rare Earth La and Ce on the Microstructure,Mechanical Properties,and Thermal Conductivity of Al-3Si-0.4Cu-1.0Fe Die Casting Aluminum Alloy," Rare Metals and Cemented Carbides, no. 5, pp. 50-56, 2023. keywords: {die casting aluminum alloy;La;Ce;microstructure;secondary dentritic arm spacing;thermal conductivity;mechanical property} |