Pseudoeutectic Microstructure
Pseudo-eutectic structure looks like eutectic but differs due to other formation conditions or impurities. Shows deviating melting and solidification characteristics.
Physicochemical Mechanism of Action
A pseudo-eutectic structure forms from specific impurities or uneven filler distribution in the melt. It looks like a eutectic but has different thermodynamic properties and forms under different conditions.
Metallurgical Relevance & Welding Risks
This structure can cause unwanted mechanical properties, such as increased hardness or toughness. It can also cause distortion and cracking in the weld if the filler distribution isn't right.
Workshop Practice & Procedures
To avoid pseudo-eutectic structure, make sure the filler is evenly distributed and the melting conditions are correct. Use proper deoxidizers and control the melt temperature carefully. If you suspect pseudo-eutectic, do a detailed metallurgical analysis.