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Dear Colleagues,

It is critical to understand the fundamental mechanisms during the metal machining process. Machining parameters, tool geometries, and metal microstructure all have significant effects on the dynamics of velocity, deformation, stress, and temperature in shear zone. The physics-based analysis and predictive model on shear straining, thermal kinematics, and material constitutive relation can help to comprehend the coupling effects between thermal and mechanical loadings and the related materials behavior evolutions. Metal microstructure changes in machining include recrystallization, grain growth, crystallization evolution, and phase transformation. The machining process is significantly influenced by the material microstructure as the tool cutting through grain boundaries. In return, microstructure of metal keeps changing during the machining process. Therefore, the microstructure changes and machining process are affected iteratively. It is necessary to understand this mechanism to better predict the machining process.

For this Special Issue in Metals, we welcome reviews and articles regarding modeling and applications of microstructure change and mechanism during the metal machining process.

Dr. Yixuan Feng
Dr. Man Zhao
Guest Editors

Manuscript Submission Information

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Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Metals is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2000 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

microstructure evolution
machining process
fundamental mechanisms
recrystallization
phase transformation

Published Papers (2 papers)

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Editorial

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Open AccessEditorial

Microstructure Change and Mechanism during the Metal Machining Process, Modeling, and Applications

Yixuan Feng

and

Man Zhao

Metals 2022, 12(7), 1090; https://doi.org/10.3390/met12071090 - 25 Jun 2022

Viewed by 601

Abstract

It is critical to understand the fundamental mechanisms during the metal-machining process [...] Full article

(This article belongs to the Special Issue Microstructure Change and Mechanism during the Metal Machining Process, Modeling, and Applications)

Research

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Open AccessArticle

Study on Hot Deformation Behavior and Texture Evolution of Aluminum Alloy 7075 Based on Visco-Plastic Self-Consistent Model

and

Metals 2022, 12(10), 1648; https://doi.org/10.3390/met12101648 - 30 Sep 2022

Cited by 1 | Viewed by 694

Abstract

In this paper, the VPSC (visco-plastic self-consistent) model was improved by considering the effect of heating rate. The hot compression deformation behavior and texture evolution of AA7075 were studied based on the improved VPSC model and EBSD (electron back-scattering diffraction). The stress–strain curves, inverse pole figure (IPF), and orientation distribution function (ODF) of the material were analyzed by combining TSL-OIM-Analysis, MTEX, and other analysis software. By observing the changes in grain structure and micro-texture of the material before and after hot compression deformation, the influence of macro-deformation conditions on the microstructure evolution of the material was studied, and the evolution law of grain structure and micro-texture was analyzed. It was found that the hot deformation parameters have significant effects on the stress–strain curve characteristics and micro-texture evolution of AA7075 during hot deformation. Copper {112} <111> and {011} <1

\bar{1}

1> are the main textures, and the strength and distribution of typical textures such as Copper {112} <111>, Cube {001} <100>, and Goss {011} <100> show regularity with the change in deformation conditions. Through comparing the predicted results of the improved VPSC model and experimental data, it is distinct that the improved VPSC model is suitable to predict the micro-texture evolution of AA7075 during hot compression. Finally, the sensitivity of micro-texture evolution to hot compression parameters such as heating rate was analyzed. Full article

(This article belongs to the Special Issue Microstructure Change and Mechanism during the Metal Machining Process, Modeling, and Applications)

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