Sample Preparation

Dave Coulston discusses what benefits can be derived from the different weld examinations and how best to prepare welds for such analyses, as well as typical weld measurements and examples of automated hardness testing of welds.

The American Welding Society (AWS) method A4.4M:2001 (R2006) “Standard Procedures for Determination of Moisture Content of Welding Fluxes and Welding Electrode Flux Coatings” outlines the appropriate methodology for sample preparation and analysis...

Many steel components can benefit from surface hardening, which improves wear resistance while maintaining a part’s toughness. Surface hardening can be accomplished by nitriding, induction hardening, or even shot peening; but carburizing remains t...