Weldability and Reparability of Nickel-Base Alloys
A special issue of Metals (ISSN 2075-4701). This special issue belongs to the section "Welding and Joining".
Deadline for manuscript submissions: 31 May 2025 | Viewed by 39
Special Issue Editor
Interests: raw materials; structural integrity of welded joints and additively manufactured components; welding and heat treatment simulation; cast iron; stainless steels; material selection
Special Issues, Collections and Topics in MDPI journals
Special Issue Information
Dear Colleagues,
Designing for sustainability requires increasingly higher performance materials and enhanced techniques to understand their interconnections. There is a strong motivation to improve the heat resistance of alloys in order to enhance the thermal efficiency of engines, which is necessary to achieve environmental targets and reduce the emissions of harmful greenhouse gasses. For advanced-ultra supercritical applications, the emphasis is on high-temperature strength, long-term creep life, phase stability, oxidation resistance, and robust and flexible welding processes. In this scenario, Ni-base superalloys are successfully used for mechanical components operating at high temperatures and stresses; however, these conditions may cause surface cracks. Cracks can also form during the fabrication process, compromising product quality. Therefore, repair techniques, in the frame of a circular economy, have a relevant economic and environmental impact, particularly when dealing with high-cost materials like Ni-base superalloys.
This Special Issue intends to collect new advances in the welding and repairing of nickel-base alloys that are aimed at improving the high-temperature performances of joints as well as extending their lifespan from the perspective of sustainability.
Prof. Dr. Paolo Ferro
Guest Editor
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Keywords
- welding
- repairing
- nickel-base alloy
- weldability
- solidification cracking
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