Microstructure and high temperature compressive deformation in lightweight open cell titanium foam. (January 2021)

• Record Type: Journal Article
• Authors: Jain, Hemant; Mondal, D.P.; Gupta, Gaurav; Kothari, Anil; Kumar, Rajeev; Pandey, Ashutosh; Shiva, S.; Agarwal, Pankaj
• Is Part Of: Manufacturing letters. Volume 27(2021)
• Page Start: 67
• Page End: 71
• Publication Date: 2021-01
• Subjects: Synthesis -- Powder metallurgy -- Porous materials -- Sintering -- High temperature defromation; Manufacturing industries -- Periodicals; Production engineering -- Periodicals; Manufacturing industries; Periodicals; 670
• DOI: 10.1016/j.mfglet.2020.12.007
• Languages: English
• ISSNs: 2213-8463

Abstract

Graphical abstract: Highlights: Ti-foams successfully fabricated by PM route using evaporative ABC as a space holder. The mechanical properties of Ti-foams at high temperatures are investigated. Energy absorption decrease with increasing testing temperature. Micro-shear bands and grain structure are visible at higher testing temperature conditions. Abstract: Ti-foam of varying relative densities has been synthesis through the PM route using ABC as a space holder. Microstructure, cell size and cell wall were evaluated. The compressive deformation of Ti-foams samples with different relative densities was conducted at different temperatures. The yield stress, elastic modulus, energy absorption increases with increasing relative density and also decrease with increase testing temperature. Densification strain decreases with increasing relative density and testing temperature. The micro shear bands visible when deformed at 400–600 °C whereas at lower temperatures foam crumbled. It is due to improved ductility at a higher temperature.