V对富Fe非等原子比FeCrCoNi高熵合金组织及性能的影响
Effect of V on microstructure and properties of Fe-rich non-equiatomic FeCrCoNi high-entropy alloy
王书亮 1毛一点 1李奇霖 1周禄江 1西宇辰 1张华礼2
作者信息
- 1. 西南石油大学新能源与材料学院,四川成都 610500
- 2. 中国石油西南油气田公司工程技术研究院,四川成都 610017
- 折叠
摘要
采用机械球磨与放电等离子烧结的方法进行FeCrCoNi高熵合金的制备,通过降低Co和Ni含量,从而引入V元素,研究了V含量对Fe45Cr15Co1oNi30高熵合金组织与力学性能的影响.研究发现,与Fe45Cr15Co10Ni30合金相比,含V的高熵合金呈现出富V的BCC相,同时随着V含量的增加,BCC相的形貌与分布也出现了变化.Fe45Cr15Co2.5Ni22.5V15合金的屈服强度与抗压强度分别达到最高的869±8 MPa和1675±5 MPa,同时其应变率46.1％±1.7％也维持了较高的水平.V的引入有效提升了 Fe45Cr15Co10Ni30合金的硬度与压缩性能,可得到强度与塑性匹配良好的高熵合金.
Abstract
FeCrCoNi high-entropy alloys were prepared using mechanical ball milling and discharge plasma sintering,the V element was introduced by decreasing the content of Co and Ni elements,and the effect of V on microstructure and mechanical properties of the Fe45Cr15Co10Ni30 alloy was investigated.The results show that the V-containing high-entropy alloys form V-rich BCC phases compared with the Fe45Cr15Co10Ni30 alloy,the morphology and distribution of the BCC phases change with the increase of V content.The yield strength and compressive strength of the Fe45Cr15Co2.5Ni22.5V15 alloy reach the highest of 869±8 MPa and 1675±5 MPa,respectively,and the strain rate of 46.1％±1.7％,also maintains a high level.The introduction of V effectively improves the hardness and compressive properties of the Fe45Cr15Co10Ni30 alloy,and the alloy with good strength and plasticity matching can be obtained.
关键词
FeCrCoNi高熵合金/机械球磨/放电等离子烧结/V元素/力学性能Key words
FeCrCoNi high-entropy alloy/mechanical ball milling/discharge plasma sintering/V element/mechanical properties引用本文复制引用
基金项目
钒钛资源综合利用产业技术创新战略联盟协同研发项目()
出版年
2024
NETL
NSTL
万方数据