Bending Forces and Hardness Properties of Ti6Al4V Alloy Processed by Constrained Bending and Straightening Severe Plastic Deformation

Wambura Mwiryenyi Mwita*, Esther T. Akinlabi

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


This paper presents an investigation on bending forces and hardness properties of Ti6Al4V alloy sheets processed by constrained bending and straightening (CBS) severe plastic deformation (SPD) technique. CBS was proposed as a continuous SPD process of metals enhanced with homogeneous mechanical properties such as strain and hardness. A physical model for the CBS process was designed and fabricated. Ti6Al4V alloy samples were annealed for stress relief and ductility improvement. Alloy samples were then subjected to CBS process at 20, 10 and 5 mm feed lengths for 1 and 2-passes. Values of bending forces and micro-hardness on samples were determined. Results showed that magnitude and homogeneity of induced strain at 5 mm feed were higher than those at 20 and 10 mm feeds. The maximum average values of bending force and hardness were observed at 10 mm feed and 2-pass as 18296 N and 377.8 HV respectively. The hardness increased by 16.3% over that of annealed samples.

Original languageEnglish
Title of host publicationAdvances in Material Sciences and Engineering, ICMMPE 2018
EditorsMokhtar Awang, Seyed Sattar Emamian, Farazila Yusof
Number of pages10
ISBN (Print)9789811382963
Publication statusPublished - 2020
Externally publishedYes
Event4th International Conference on Mechanical, Manufacturing and Plant Engineering, ICMMPE 2018 - Melaka, Malaysia
Duration: 14 Nov 201815 Nov 2018

Publication series

NameLecture Notes in Mechanical Engineering
ISSN (Print)2195-4356
ISSN (Electronic)2195-4364


Conference4th International Conference on Mechanical, Manufacturing and Plant Engineering, ICMMPE 2018

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