Hardness tests let engineers check whether materials have been processed correctly. • Engineers can use hardness testing to verify the composition or heat-treatment history of materials. • Rockwell, ...

With its latest ZHU-topLine hardness tester, Zwick is strengthening its market lead as a supplier of premium universal hardness testing equipment. The first fully functioning prototypes was showcased ...

It might not seem like scraping the top of a cold stick of butter with a knife could be a scientific test, but engineers say the process is very similar to the "scratch test," which is perhaps the ...