Open AccessEffect of B element on Fe-10Cr-B alloy
Author(s) -
Jing Gao,
Yingfan Zhao,
Weiping Tong,
Chenglin Chu,
Lin Zhu
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1986/1/012028
Subject(s) - alloy , rockwell scale , materials science , boron , scanning electron microscope , metallurgy , optical microscope , carbide , sintering , boron carbide , diffraction , analytical chemistry (journal) , composite material , chemistry , optics , chromatography , physics , organic chemistry
In this paper, Fe-10Cr-B alloys with different B content were prepared by the method of liquid phase sintering. Optical microscope (OM), scanning electron microscope (SEM), X-ray diffraction (XRD), Rockwell hardness tester were used to investigate the influence of B element on the structure, phases and macro-hardness of the Fe-10Cr-B alloys. The results show that the hardness of alloys with different B content gradually increases with the increase of B content in the alloy. When the B content is 2.5 wt.%, the hardness of the alloy reaches the maximum value of 61.8HRC. A further increase in the B content will lead to a decrease in the macroscopic hardness of the alloy sample. The alloy with B content of 2.5wt.% is mainly composed of metal matrix and M 23 (C, B) 6 boron-carbides. The Cr and B elements are mainly enriched in boron-carbides.