Study on the Friction and Wear Properties of ZL105 Aluminum Alloy Modified by Mixed Rare Earth(Pr+Ce) AITranslate
Abstract AITranslate
Effects of mixed rare earth(Pr+Ce)on the microstructure and wear resistance of ZL105 aluminum alloy were studied by using optical microscope,scanning electron microscope and pin-disc friction and wear tester.The results show that the addition of an appropriate amount of mixed rare earth(Pr+Ce)can effectively refine theα-Al crystal grains and the eutectic Si phase.When the rare earth content is 0.50%,the refining effect is the best and theα-Al crystal grains become fine,small,and rounded.Also,theα-Al dendrite grain boundary becomes clear.The eutectic Si phase changes from needle-like and plate-like to short rod-like and granular.The hardness of the unmodified ZL105 aluminum alloy is 70.9 HV while the hardness of the modified alloy with 0.50%mixed rare earth reaches the highest of 88.3HV,which is 24.54%higher than that of the unmodified alloy.The unmodified alloy has poor wear resistance,with wear loss and friction coefficient of o.1927 g and 0.598,respectively,while the wear loss and friction coefficient of the alloy with 0.50%rare earth are 0.1220 g and 0.520,respectively,with wear loss decreasing by 0.0707 g and friction coefficient decreasing by 13.04%.The wear mechanism of ZL105 aluminum alloy is mainly delamination wear,and the size of wear debris is coarse.When 0.50%rare earth is added,the wear mechanism of modified alloy is mainly abrasive wear,and the wear debris mainly consists of fine particles andpowder.
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Basic Information:
DOI：
Chinese Library Classification Number:TG146[金属学及工艺—金属材料]
Citation Information:
Effects of mixed rare earth(Pr+Ce)on the microstructure and wear resistance of ZL105 aluminum alloy were studied by using optical microscope,scanning electron microscope and pin-disc friction and wear tester.The results show that the addition of an appropriate amount of mixed rare earth(Pr+Ce)can effectively refine theα-Al crystal grains and the eutectic Si phase.When the rare earth content is 0.50%,the refining effect is the best and theα-Al crystal grains become fine,small,and rounded.Also,theα-Al dendrite grain boundary becomes clear.The eutectic Si phase changes from needle-like and plate-like to short rod-like and granular.The hardness of the unmodified ZL105 aluminum alloy is 70.9 HV while the hardness of the modified alloy with 0.50%mixed rare earth reaches the highest of 88.3HV,which is 24.54%higher than that of the unmodified alloy.The unmodified alloy has poor wear resistance,with wear loss and friction coefficient of o.1927 g and 0.598,respectively,while the wear loss and friction coefficient of the alloy with 0.50%rare earth are 0.1220 g and 0.520,respectively,with wear loss decreasing by 0.0707 g and friction coefficient decreasing by 13.04%.The wear mechanism of ZL105 aluminum alloy is mainly delamination wear,and the size of wear debris is coarse.When 0.50%rare earth is added,the wear mechanism of modified alloy is mainly abrasive wear,and the wear debris mainly consists of fine particles andpowder.
quote
| GB/T 7714-2015 | [1] CHEN Hui, ZHOU Ye, ZENG Min, et al. Study on the Friction and Wear Properties of ZL105 Aluminum Alloy Modified by Mixed Rare Earth(Pr+Ce)[J]. Rare Metals and Cemented Carbides, 2022(4): 71-76. |
| MLA | [1] CHEN Hui, et al., "Study on the Friction and Wear Properties of ZL105 Aluminum Alloy Modified by Mixed Rare Earth(Pr+Ce)." Rare Metals and Cemented Carbides, no. 4, 2022, pp. 71-76. |
| APA | [1] CHEN Hui, ZHOU Ye, ZENG Min, DU Qiu-mei, & HU Wen-hua. (2022). Study on the Friction and Wear Properties of ZL105 Aluminum Alloy Modified by Mixed Rare Earth(Pr+Ce). Rare Metals and Cemented Carbides(4), 71-76. |
| IEEE | [1] CHEN Hui, ZHOU Ye, ZENG Min, DU Qiu-mei, and HU Wen-hua, "Study on the Friction and Wear Properties of ZL105 Aluminum Alloy Modified by Mixed Rare Earth(Pr+Ce)," Rare Metals and Cemented Carbides, no. 4, pp. 71-76, 2022. keywords: {ZL105 aluminum alloy;mixed rare earth;(Pr+Ce)modification;microstructure;friction and wear property;wearmechanism} |