Heat treatment is an essential technique for influencing workpiece characteristics. Several industries focus on reliable part design to avoid breaking parts, e.g. by decreasing material weight and ...

Fundamentally, hardness testing determines the resistance a material exhibits in response to the permanent deformation of another material’s penetration. If I take a piece of metal and rub something ...

PennEnvironment says school districts skip lead testing, don’t test all of their outlets and, in some cases, fail to report test results. File photo: Water fountains at a Philadelphia charter school ...