16 de abril de 2025

crack defects

What are the effects of heat treatment on crack defects in high manganese steel?

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1. Effect of quenching process Quenching temperature: If the quenching temperature is too high, the austenite grains of high manganese steel will grow, resulting in reduced toughness of the material. During the cooling process, due to the combined effect of tissue stress and thermal stress, the casting is prone to cracks. For example, when the […]

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cast iron cross section

Color changes during visual inspection of cast iron cross section

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1. Visual color changes of gray cast iron ferrite, pearlite, and cementite fracture When gray cast iron is directly visually inspected without a microscope, the color differences of ferrite, pearlite, and cementite are as follows: Ferrite: A smooth cross section appears light gray, metallic, uniform, and pure, with no obvious patterns or special structures. Pearlite:

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