材料科学
极限抗拉强度
微观结构
放电等离子烧结
复合材料
还原(数学)
延伸率
拉伸试验
几何学
数学
作者
Wei Yan,Hongmei Zhang,Houzhi Cai,Qunbo Fan,Xiaonan Mu
出处
期刊:Rare Metal Materials and Engineering
[Elsevier]
日期:2018-08-01
卷期号:47 (8): 2312-2317
被引量:5
标识
DOI:10.1016/s1875-5372(18)30184-x
摘要
Graphene nanoplatelets (GNPs)/Ti composites were fabricated by spark plasma sintering (SPS) and hot-rolling. This work was focused on the effects of rolling reduction on microstructure and mechanical properties of GNPs/Ti composites. The SEM microstructure results show that matrix grains are gradually elongated and the amount of GNPs along the rolling direction rises with the increase of rolling reduction. The tensile test results indicate that the ultimate tensile strength and fracture elongation of the GNPs/Ti composites increase with the increase of rolling reduction. The ultimate tensile strength of the composites at 60% rolling reduction is 680 MPa, which is increased by 33% compared with pure Ti. Hot-rolling process can relieve defects and lead to GNPs aligned along the rolling direction, which improves the tensile property.
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