Microstructure evolution and composition redistribution of FeCoNiCrMn high entropy alloy under extreme plastic deformation
نویسندگان
چکیده
The microstructure and composition evolution of FeCoNiCrMn high entropy alloy during extreme deformation with a strain rate 108–109 s−1 induced by cold spray technology was investigated. In the region experiencing extremely large deformation, ultrafine nanograins an average size smaller than 100 nm were formed due to occurrence dynamic recrystallization. Additionally, rapid redistribution segregated Mn Ni elements in deformed found for first time. reason this phenomenon is increased grain boundary area dislocation density caused plastic deformation.
منابع مشابه
Deformation Behavior and Microstructure Evolution of NiTiCu Shape Memory Alloy Subjected to Plastic Deformation at High Temperatures
Deformation behavior and microstructure evolution of NiTiCu shape memory alloy (SMA), which possesses martensite phase at room temperature, were investigated based on a uniaxial compression test at the temperatures of 700~1000 ◦C and at the strain rates of 0.0005~0.5 s−1. The constitutive equation of NiTiCu SMA was established in order to describe the flow characteristic of NiTiCu SMA, which is...
متن کاملMicrostructure and High Temperature Deformation Behavior of Cast 310S Alloy
High temperature deformation behavior of cast 310S stainless steel has been investigated in this study by performing tensile and compression tests at temperatures from 900 to 1200C. Rectangular ingots of which the dimensions were 350×350×100 in millimeter were cast using vacuum induction melting. Phase equilibrium was calculated using the FactSage®, thermodynamic software and database. Thermal ...
متن کاملDislocations and deformation microstructure in a B2-ordered Al28Co20Cr11Fe15Ni26 high-entropy alloy
High-entropy alloys are multicomponent metallic materials currently attracting high research interest. They display a unique combination of chemical disorder and crystalline long-range order, and due to their attractive properties are promising candidates for technological application. Many high-entropy alloys possess surprisingly high strength, occasionally in combination with high ductility a...
متن کاملMicrostructure, Tensile and Creep Properties of Ta20Nb20Hf20Zr20Ti20 High Entropy Alloy
This paper examines the microstructure and mechanical properties of Ta20Nb20Hf20Zr20Ti20. Two casting processes, namely, gravity casting and suction-assisted casting, were applied, both followed by Hot Isostatic Pressing (HIP). The aim of the current study was to investigate the creep and tensile properties of the material, since the literature review revealed no data whatsoever regarding these...
متن کاملEmergence of stable interfaces under extreme plastic deformation.
Atomically ordered bimetal interfaces typically develop in near-equilibrium epitaxial growth (bottom-up processing) of nanolayered composite films and have been considered responsible for a number of intriguing material properties. Here, we discover that interfaces of such atomic level order can also emerge ubiquitously in large-scale layered nanocomposites fabricated by extreme strain (top dow...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Materials research letters
سال: 2022
ISSN: ['2166-3831']
DOI: https://doi.org/10.1080/21663831.2021.2023678