Enhancing Strength and Toughness of HSLA Steel Welds through Microalloying with Titanium and Vanadium Addition

Authors

  • Musa Moh. H. Abdullrhman 1- dept. of Petroleum Engineering University of Gharyan, Libya
  • Al-Mehdi M. Ibrahem 2- dept. of Mechanical & industrial Eng. University of Gharyan, Libya

DOI:

https://doi.org/10.5281/zenodo.16629411

Keywords:

High strength low alloy steel, Ti and V microalloying elements, heat affected zone, microstructure and mechanical properties

Abstract

The study aims to improve the strength, and the toughness of the welding zone of high strength low alloy steel (HSLA) by adding microalloying elements, titanium, and vanadium via tungsten inert gas torch technique. The melting was carried out using powder preplacement procedure with the welding variables of current, 80-100A and voltage, 30-40V. Experimental results showed that Ti and V elements play an important role on the heat affected zone hardness, impact toughness and tensile strength of HSLA steel. Furthermore, a maximum ultimate tensile strength of 693 MPa and 730 MPa were achieved with Ti and V addition respectively. The reduction in HAZ hardness values with Ti and V addition was 15% and 19% respectively, compared to base material, thereby reducing the risk of brittle fracture.

Downloads

Published

2024-09-01 — Updated on 2026-03-22

Versions

How to Cite

Abdullrhman, M. M. H., & Ibrahem, A.-M. M. (2026). Enhancing Strength and Toughness of HSLA Steel Welds through Microalloying with Titanium and Vanadium Addition. Gharyan Journal of Technology, 1(10), 22–48. https://doi.org/10.5281/zenodo.16629411 (Original work published September 1, 2024)

Issue

Vol. 1 No. 10 (2024): Issue 10

Section

Articles

License

Copyright (c) 2025 Gharyan Journal of Technology

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.