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复合区基体调控对Al2O3p/40Cr钢球形网络构型复合材料压缩性能的影响
Influence of Composite Matrix on Compressive Properties of Al 2 O 3 p/40Cr Steel Based Spherical Network Architecture Composites
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- DOI:
- 作者:
- 魏绍生1,2龚文豪1张西鹏1卢德宏1
WEI Shaosheng 1,2 , GONG Wenhao 1 , ZHANG Xipeng 1 , LU Dehong 1
- 作者单位:
- 1. 昆明理工大学材料科学与工程学院2. 云南机电职业技术学院机械工程学院
1. Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093, China; 2. Department of Mechanical Engineering, Yunnan Vocational College of Mechanical and Electrical Technology, Kunming 650203, China
- 关键词:
- 复合区基体;调控;网络构型复合材料;压缩力学性能;
composite matrix; adjusting; network architecture composite; compression mechanical properties
- 摘要:
- 采用金属微粉对Al2O3p/40Cr钢球形网络构型复合材料的复合区基体进行调控,研究了金属微粉对构型复合材料压缩性能的影响。结果表明,Fe320合金粉调控的构型复合材料压缩屈服强度、抗压强度、断裂应变,分别比还原铁粉调控复合材料提升了26.0%、25.4%、21.3%。结果表明,Fe320粉提高了构型复合材料复合区基体中Ni等合金元素含量,而还原铁粉则略微降低了复合区基体合金元素含量,因此Fe320粉强化了复合区基体。同时,球形网络复合结构中,裂纹在复合区内部纵向扩展,基体区对裂纹扩展有明显阻碍作用。因此,构型结构与复合区基体强化协同提高了构型复合材料的压缩力学性能。
The influenceof the composite zone matrix on the compression properties of Al 2 O 3 p/40Cr steel network architecture composites was studied by adjusting the matrix withmetallic powders. The results show that the compressive yield strength, compressive strength and fracture strain of the Fe320 adjustedarchitecture composite increased by 26.0%, 25.4% and 21.3%, respectively, compared with the reduced iron powder adjustedarchitecture composite. The reason is that Fe320 powder increases the content of alloying elements such as Ni in the composite matrix, while iron powder slightly reduces the content of alloying elements in the composite matrix, so Fe320 powder strengthens the composite matrix. At the same time, in the spherical network composite architecture, the cracks propagate vertically inside the composite zone, and the matrix zone of the architecture composites obviously hinders crack propagation. Therefore, the combination of architecture structure and matrix strengthening in the composite zone improves the compressive properties of architecture composites.