APP0421NI – Guidelines for the Welded Fabrication of Nickel Alloys for Corrosion-Resistant Service

Description

Estimated time: 4 hours

Language: English

Summary of the lecture

This course provides practical instructions for the welded fabrication of nickel alloys used in corrosion-resistant service. Aimed at welders, materials engineers, and design engineers, it explains how nickel alloys behave during welding, how to avoid defects that reduce corrosion resistance, how to select and qualify welding procedures, and how to design equipment that performs reliably in corrosive environments. It covers welding processes, joint preparation, contamination control, alloy groups, filler metal selection, fabrication of castings, and design strategies to minimise corrosion in service.

 

What you will learn:

  • Identify the major groups of nickel alloys and understand how their physical and metallurgical properties influence welding performance.
  • Apply proper welding practices—including joint preparation, cleanliness, heat tint removal, and contamination control—to ensure high-quality, corrosion-resistant welds.
  • Select appropriate welding processes and filler metals for solid-solution, precipitation-hardening, and dissimilar-metal nickel alloy welds.
  • Recognise welding-related defects (porosity, cracking, embedded iron, crevices) and implement measures to prevent them.
  • Understand material procurement considerations, especially for nickel alloy castings, including inspection, heat treatment, and repair welding.
  • Incorporate design principles that improve corrosion performance in tanks, piping, and other equipment, including choices of weld geometry, overlays, linings, and clad materials.
  • Ensure compliance with qualification codes (ASME, AWS) for welding procedures and welder performance.
Not Enrolled

Course includes

  • 1 Lesson
  • Steel Applications