Methods for Detecting Metal Material Composition
Determining the chemical composition of a metal is fundamental in materials science, manufacturing, quality control, and failure analysis. The methods range from simple, non-destructive techniques for quick sorting to highly sophisticated laboratory instruments for precise quantitative analysis. They can be broadly categorized into Non-Destructive Testing (NDT) and Destructive Testing. Non-Destructive Testing (NDT) Methods These methods analyze the material […]
What is black oxide?
Black oxide, which is also called blackening, is a type of chemical conversion coating process mainly applied to ferrous materials like steel or iron. The metal reacts chemically with a specific alkaline oxidising solution to produce an extremely thin layer of iron oxide(Fe₃O₄) film. This film(about 0.5-1.5μm)is uniformly black and tightly bonded to the metal […]
