| Issue |
MATEC Web Conf.
Volume 417, 2025
2025 RAPDASA-RobMech-PRASA-AMI Conference: Bridging the Gap between Industry & Academia - The 26th Annual International RAPDASA Conference, joined by RobMech, PRASA and AMI, co-hosted by CSIR and Tshwane University of Technology, Pretoria
|
|
|---|---|---|
| Article Number | 07007 | |
| Number of page(s) | 9 | |
| Section | AM Material and Part Characterisation | |
| DOI | https://doi.org/10.1051/matecconf/202541707007 | |
| Published online | 25 November 2025 | |
Characterisation of welds of Ni-Cr-Cu electrodes on cast-iron substrate
1 Advanced Materials Division, MINTEK, 200 Malibongwe Drive, RANDBURG, 2194, South Africa
2 University of Johannesburg, Engineering Metallurgy, Johannesburg, South Africa
* Corresponding author: carolinem@mintek.co.za
In this study, two nickel-based non-coated electrodes were manufactured to test their suitability and compatibility for welding austempered ductile iron (ADI). Welding conditions were established to obtain a crack-free weld deposit on ADI plate by preheating (300°C for 1hour) as well as post-weld heat treatment (PWHT) at constant heat input using two selected electrodes (Ni-Cr) alloys with varying composition of copper. Current work was aimed at preventing hot cracking, which is the most common and serious issue that occurs when welding with nickel alloys. The work aims to assess the performance of the two Ni-Cr-Cu electrodes compared to Ni-Cr electrodes that cause hot cracking.
© The Authors, published by EDP Sciences, 2025
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.