Parent Metal Combination
Base material combination refers to the composition of different or same materials in a welded joint. Careful selection of filler metals optimizes solid solution formation and improves mechanical properties.
Physico-Chemical Mechanism of Action
Base material combination refers to the composition of different or same materials in a welded joint. The selection of filler metals influences the formation of solid solutions, which determine the mechanical properties of the weld.
Metallurgical Relevance & Welding Risks
An unsuitable base material combination can lead to defective solid solution formation, which affects the strength and toughness of the weld. This increases the risk of cracking and reduces the life of the joint.
Workshop Practice & Action Instructions
For an optimal base material combination, it is crucial to choose the chemical filler metal that best matches the base material. This can be determined through samples and laboratory tests. When selecting, consider the specific requirements for strength, tightness, and corrosion resistance of the weld.