Open AccessPhase composition and microstructure formation mechanism of in-situ Cu-Fe micro-composites
Author(s) -
K M Liu,
Yang Jin,
Xiaochun Sheng,
Zhi-Kai Huang,
Jin Zou,
W Chen,
M C Zhang,
Huiming Huang,
Deping Lu
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/668/1/012020
Subject(s) - microstructure , materials science , scanning electron microscope , composite material , in situ , alloy , phase (matter) , transverse plane , composite number , optical microscope , texture (cosmology) , deformation (meteorology) , diffraction , optics , chemistry , image (mathematics) , physics , structural engineering , organic chemistry , artificial intelligence , computer science , engineering
The phase composition and microstructure formation mechanism of in-situ Cu-Fe micro-composites were investigated. The microstructures of longitudinal and transverse sections were analyzed by light microscopy and scanning electron microscopy. The phase analysis was executed by X-ray diffraction. The common microstructure characteristic of Cu-XFe (X = 11, 14 and 17) alloys was that the second phase α-Fe dendrites were uniformly distributed in the Cu matrix. The disorderly distributed Fe dendrites of Cu-14Fe alloy underwent initial inhomogeneous deformation and then were gradually changed into the directionally arranged Fe fibers of in-situ Cu-14Fe micro-composite in the longitudinal section, and were gradually transformed into the irregular V-shaped Fe fibers in the transverse section. The initial inhomogeneous deformation and the irregular V-shaped Fe fibers in the transverse section are closely related to the formation of texture.