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Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/13337

Title: Surface hardening of ferrous materials with cassava (Manihot spp.) waste: A review
Authors: Arthur, Emmanuel Kwesi
Azeko, Salifu T.
Keywords: Cassava waste
Bio-cyaniding
Surface hardening
Microstructure
Hardness
Abrasive wear
Issue Date: 10-Jul-2020
Publisher: Scientific African (Elsevier)
Abstract: This paper presents a comprehensive review on surface hardening of ferrous materials using in- situ diffusion of nascent carbon and nitrogen from cyanide-based bio-processed cassava wastes with BaCO3 and BaCl2 energizers (bio-cyaniding). The review focuses on the research efforts on biocyaniding (also known as pack cyaniding) of iron and steel during the last decade. A brief description of the processes is elucidated along with the effects of bio-cyaniding on the microstructure, micro-/nano-hardness and wear properties of the bio-cyanided surfaces. Both intermediate-temperature bio-cyaniding (in-situ diffusion into ferrite) and hightemperature bio- cyaniding (in-situ diffusion into austenite) are also described. The biocyaniding hardening technique is compared with competing hardening techniques. It was concluded that the use of bio-cyaniding for the surface hardening of metals provides an alternative technique to the conventional surface hardening processes and offers potential advantages such as relatively low capital cost of the equipment, operating temperature and time.
URI: http://hdl.handle.net/123456789/13337
Appears in Collections:College of Engineering

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