Dimensional stabilization of 55%SiCp/Al composites
High volume fraction SiCp/Al composites characterized by high modulus and low expansion have great application potential in the field of aerospace precision instruments. In this application scenario， it is necessary to deepen the study of the dimensional stability of the materials and further improv...
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Journal of Materials Engineering
2025-04-01
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| Series: | Cailiao gongcheng |
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| Online Access: | https://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2022.001066 |
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| author | CUI Yan LI Pengwei LI Shuo CAO Leigang YANG Yue LIU Yuan |
| author_facet | CUI Yan LI Pengwei LI Shuo CAO Leigang YANG Yue LIU Yuan |
| author_sort | CUI Yan |
| collection | DOAJ |
| description | High volume fraction SiCp/Al composites characterized by high modulus and low expansion have great application potential in the field of aerospace precision instruments. In this application scenario， it is necessary to deepen the study of the dimensional stability of the materials and further improve the precision stability of components. Three kinds of SiC particle-reinforced high volume （55%） aluminum matrix composites with the average particle size （D50） of 14， 76 μm， and gradation of 14 μm and 76 μm are treated with different dimensional stabilization treatments， such as the solid solution aging， the thermal-cold cycling treatment with different temperature parameters after the solid solution， the thermal-cold cycling treatment， etc. After the treatment， the dimensional stability of the samples is tested with the control samples for five times at a low temperature of 180 ℃ thermal loading environment. The results show that compared with the 14 μm particle-reinforced samples， the 76 μm particle-reinforced samples and the gradation of 14 μm and 76 μm particle-reinforced samples show better dimensional stability， the size change rate （dV/V） of the control samples can be stabilized at about 1×10-3. Among the five dimensional stabilization treatment regimes， the effect of -196-191 ℃ （4 times） thermal-cold cycling treatment after the solid solution is the most significant， the size change rate （dV/V） of the samples after this treatment can be stabilized at 10-4 orders of magnitude. According to the comparison of X-ray diffraction patterns， the thermal-cold cycling treatment after the solid solution can promote the precipitation of the strengthening phase of Al2Cu significantly. |
| format | Article |
| id | doaj-art-9e79c6895fa44aa583032b58e658eb45 |
| institution | Kabale University |
| issn | 1001-4381 |
| language | zho |
| publishDate | 2025-04-01 |
| publisher | Journal of Materials Engineering |
| record_format | Article |
| series | Cailiao gongcheng |
| spelling | doaj-art-9e79c6895fa44aa583032b58e658eb452025-08-20T03:53:23ZzhoJournal of Materials EngineeringCailiao gongcheng1001-43812025-04-0153416917710.11868/j.issn.1001-4381.2022.0010661001-4381（2025）04-0169-09Dimensional stabilization of 55%SiCp/Al compositesCUI Yan0LI Pengwei1LI Shuo2CAO Leigang3YANG Yue4LIU Yuan5School of Mechanical and Materials Engineering，North China University of Technology，Beijing 100144，ChinaSchool of Mechanical and Materials Engineering，North China University of Technology，Beijing 100144，ChinaSchool of Mechanical and Materials Engineering，North China University of Technology，Beijing 100144，ChinaSchool of Mechanical and Materials Engineering，North China University of Technology，Beijing 100144，ChinaSchool of Mechanical and Materials Engineering，North China University of Technology，Beijing 100144，ChinaSchool of Mechanical and Materials Engineering，North China University of Technology，Beijing 100144，ChinaHigh volume fraction SiCp/Al composites characterized by high modulus and low expansion have great application potential in the field of aerospace precision instruments. In this application scenario， it is necessary to deepen the study of the dimensional stability of the materials and further improve the precision stability of components. Three kinds of SiC particle-reinforced high volume （55%） aluminum matrix composites with the average particle size （D50） of 14， 76 μm， and gradation of 14 μm and 76 μm are treated with different dimensional stabilization treatments， such as the solid solution aging， the thermal-cold cycling treatment with different temperature parameters after the solid solution， the thermal-cold cycling treatment， etc. After the treatment， the dimensional stability of the samples is tested with the control samples for five times at a low temperature of 180 ℃ thermal loading environment. The results show that compared with the 14 μm particle-reinforced samples， the 76 μm particle-reinforced samples and the gradation of 14 μm and 76 μm particle-reinforced samples show better dimensional stability， the size change rate （dV/V） of the control samples can be stabilized at about 1×10-3. Among the five dimensional stabilization treatment regimes， the effect of -196-191 ℃ （4 times） thermal-cold cycling treatment after the solid solution is the most significant， the size change rate （dV/V） of the samples after this treatment can be stabilized at 10-4 orders of magnitude. According to the comparison of X-ray diffraction patterns， the thermal-cold cycling treatment after the solid solution can promote the precipitation of the strengthening phase of Al2Cu significantly.https://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2022.001066sicp/al compositesdimensional stabilitythermal-cold cycling treatmentstrengthening phase |
| spellingShingle | CUI Yan LI Pengwei LI Shuo CAO Leigang YANG Yue LIU Yuan Dimensional stabilization of 55%SiCp/Al composites Cailiao gongcheng sicp/al composites dimensional stability thermal-cold cycling treatment strengthening phase |
| title | Dimensional stabilization of 55%SiCp/Al composites |
| title_full | Dimensional stabilization of 55%SiCp/Al composites |
| title_fullStr | Dimensional stabilization of 55%SiCp/Al composites |
| title_full_unstemmed | Dimensional stabilization of 55%SiCp/Al composites |
| title_short | Dimensional stabilization of 55%SiCp/Al composites |
| title_sort | dimensional stabilization of 55 sicp al composites |
| topic | sicp/al composites dimensional stability thermal-cold cycling treatment strengthening phase |
| url | https://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2022.001066 |
| work_keys_str_mv | AT cuiyan dimensionalstabilizationof55sicpalcomposites AT lipengwei dimensionalstabilizationof55sicpalcomposites AT lishuo dimensionalstabilizationof55sicpalcomposites AT caoleigang dimensionalstabilizationof55sicpalcomposites AT yangyue dimensionalstabilizationof55sicpalcomposites AT liuyuan dimensionalstabilizationof55sicpalcomposites |