What is Cryptocrystalline Martensite? Cryptocrystalline martensite is a microstructural morphology of martensite. Its main feature is that, when observed under a metallographic microscope, there are no obvious needle-like or bamboo-leaf shapes, but rather a blurry, darker-colored area that seems to ... Read More

What is Eddy Current Technique? The most common use of eddy current measurement is for non-conductive coatings over non-ferrous metals such as anodize or paint over aluminum. This technique allows for an accurate reading with even very thin materials through elimination of the base effect. How eddy ... Read More

Differential Interference Contrast (DIC), also known as Nomarski Contrast, helps to visualize small height differences on the specimen surface, thus enhancing feature contrast. DIC uses a Wollaston prism together with a polarizer and analyzer whose transmission axes are perpendicular (crossed at 90°... Read More

The Difference Between Brightfield and Barkfield Brightfield (BF) illumination is the most common illumination technique for metallographic analysis. In incident BF, the light path comes from the light source, passes through the objective lens, is reflected off the surface of the specimen, returns ... Read More

Rockwell Indentation Spacing The hardness of the material immediately surrounding a previously made indentation will usually increase due to the induced residual stress and work hardening caused by the indentation process. If a new indentation is made in this affected material, the measured hardness ... Read More

What is deformation in metal materials? When metal materials are subjected to external forces and their shape and size change, this is called deformation. Material deformation includes plastic deformation and elastic deformation. For materials that deform, if the deformation disappears when the ... Read More

Plastic Abrasion Tester Textile Friction Testing Machine Alcohol Wear Test Equipment ASR-5600 Application: The iqualitrol coating wear resistance tester was used for TV remote control button silk screen, plastic, mobile phone shell, headphone shell silk screen, battery silk screen, keyboard printing... Read More

Two Major Reasons to do Hardness Testing for Metal Materials: a, to verify the heat treatment of a part and to determine if a material has the properties necessary for its intended use; b, to determine the characteristics of materials whether qualified in industrial and R&D applications. Features of ... Read More

What is Controlled Rolling and Controlled Cooling? Within the industry, there are two ways to interpret controlled rolling and controlled cooling. The first is the split approach, which separates the process into controlled rolling (CR) and controlled cooling (AC/ACC, controlled cooling/accelerate ... Read More

Nondestructive Magnetic Thickness Measurement The iqualitrol magnetic gages are widely used to measure electroplating, nickel coatings, phosphating, paint, plastic and coatings such as enamel on steel. Based on the Magnetic Attraction principle, they allow for the quick, precise, nondestructive ... Read More