Debdipta Banik, Rahul Mitra, S. Mukherjee, J. Bhagyaraj, K. Mondal
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Abstract
The present study deals with the development of a harmonic structured commercially pure Ti using a novel and newly designed press-milling method to surface-deform the Ti powder particles and subsequent sintering. The harmonic structure is a bimodal distribution of fine and coarse grains where a continuous network of fine grains (shell) surrounds discrete clusters of coarse grains (core). A harmonic structured Ti featuring a shell with an average grain size of ~ 4.3 μm and a core with an average grain size of ~ 12 μm is obtained. The HCP crystal structure in the XRD patterns indicates the absence of any phase transformation due to press-milling. The hardness of the shell region improves ~ 2.5 times that of core regions. The compression studies also show an improved combination of strength and ductility in the harmonic structured Ti.
期刊介绍：
Transactions of the Indian Institute of Metals publishes original research articles and reviews on ferrous and non-ferrous process metallurgy, structural and functional materials development, physical, chemical and mechanical metallurgy, welding science and technology, metal forming, particulate technologies, surface engineering, characterization of materials, thermodynamics and kinetics, materials modelling and other allied branches of Metallurgy and Materials Engineering.
Transactions of the Indian Institute of Metals also serves as a forum for rapid publication of recent advances in all the branches of Metallurgy and Materials Engineering. The technical content of the journal is scrutinized by the Editorial Board composed of experts from various disciplines of Metallurgy and Materials Engineering. Editorial Advisory Board provides valuable advice on technical matters related to the publication of Transactions.
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