Influence of Welding Processes on Tensile Properties, Microstructure, and Hardness of Friction Stir Welded AZ31B Magnesium Alloy
Journal Title: Bonfring International Journal of Industrial Engineering and Management Science - Year 2014, Vol 4, Issue 2
Abstract
Friction Stir Welding (FSW) was performed on 5-mm thick plates, machined from rolled AZ31B Magnesium alloy.The microstructure and defects formation were investigated by optical microscope. The mechanical properties were determined by tensile and hardness tests. Frictional heat and plastic flow during friction stir welding create the fine recrystallized grain (Stir Zone, SZ) and the elongated and recovered grain (Thermo-Mechanical Affected Zone, TMAZ) in the weld zone. Heat affected zone (HAZ), which can be identified only by hardness test due to no difference in grain structure compared with the base metal, is formed beside the weld zone. In this study, the effect of rotational speed on microstructure , hardness and mechanical properties of Friction stir welded Mg AZ31B alloy have been investigated. Friction stir welding (FSW) is carried out at different rotational speeds of 900 rpm, 1120 rpm, 1400 rpm and 1800 rpm with High speed steel (HSS) at a constant welding speed of 40 mm/min, tilt angle of 2.50 and axial force of 5 KN. It is observed that the joint fabricated using HSS tool material at a rotational speed of 1400 rpm obtained higher mechanical properties as compared to those of 900 rpm, 1120 rpm and 1800 rpm
Authors and Affiliations
S. Ugender , Dr. A. Kumar , Dr. A. Somi Reddy
Keywords
Related Articles
- EP ID EP94789
- DOI 10.9756/BIJIEMS.4826
- Views 124
- Downloads 0
Microwave Drilling with Litz Wire using a Domestic Applicator
The work presented in the paper shows a way to drill a blind hole on perspex material at 2.45 GHz frequency of microwaves using a domestic applicator of 700 W maximum powers. The approach was based on the approach...
Health Equity in Developing Countries: A Need for Effective and Responsive Public Service Delivery to Improve Access to Health Services
In developing countries, there exist health disparities, due to various social inequalities prevailing among several socially disadvantaged groups. The causes for such health disparities are multi dimensional. The paper,...
Supply Chain Management Practices in MSMEs’ Fast Moving Consumer Goods Industries - An Empirical Study with Special References to Mulugu District of Telangana
Supply Chain Management techniques are mostly useful and relevant to the MSMEs to optimize production and distribution process of goods and services and minimize the cost of production and distribution costs at optimum l...
The Psycho-Social Aspects of Non-Adherence in ART Therapy in HIV/AIDS and Social Work Intervention: A Case Study in Delhi
HIV/AIDS, the epidemic is a major concern of public health since its impacts are devastating. Though the highly active antiretroviral therapy has significantly minimized the fast mortality rates among PLHIVs yet Non-adhe...
Enhancing Language Learning Through Modern Gadgets
We are living in a world where technology is becoming more and more important every day. The word E-Learning has become the most significant word among the students, teachers and in every educational environment. E-mails...