LECO Solutions for Sample Preparation

Application Notes

Learn more with our latest Sample Preparation application notes.

Videos

Watch our most recent videos on Sample Preparation.

• Basic Metallographic Analysis of Welds

  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.

• Determination of Moisture in Welding Flux

  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 for this application. Moisture content in the flux can be correlated to the hydrogen content in the weld metal, and to varying degrees, the potential for hydrogen embrittlement. Clearly, determination of moisture content in welding flux is necessary to understand the quality of the final weld. Join us to learn how the LECO RC612 can be utilized to quantify the moisture present in welding flux samples, as outlined by AWS A4.4:2001 (R2006). Adam Darling, Analytical Chemist, LECO Corporation

• Metallographic Preparation and Analysis of Carburized Steel

  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 the most viable choice for many applications. In this webinar, Dave Coulston explains what carburizing is, how it is accomplished, and then describes the important chemical, metallurgical and mechanical property results of a carburizing treatment. This is followed by metallographic preparation of carburized steel and microscopic evaluation of the carburized layer.