enow.com Web Search

Search results

1. Results from the WOW.Com Content Network

2. Vickers hardness test - Wikipedia

   en.wikipedia.org/wiki/Vickers_hardness_test

   The Vickers hardness test was developed in 1921 by Robert L. Smith and George E. Sandland at Vickers Ltd as an alternative to the Brinell method to measure the hardness of materials. [1] The Vickers test is often easier to use than other hardness tests since the required calculations are independent of the size of the indenter, and the indenter ...

3. Soken tester - Wikipedia

   en.wikipedia.org/wiki/Soken_tester

   Soken tester Testing head on the sample of electrical steel. Soken tester - is a portable single yoke instrument for assessing the power loss in electrical steel laminations.. It has been developed for quick assessment of power loss in electrical steel sheet without the need for cutting and annealing, as it is the case for standardised methods like Epstein frame.

4. Indentation hardness - Wikipedia

   en.wikipedia.org/wiki/Indentation_hardness

   In the Knoop test, only the longer diagonal is measured, and the Knoop hardness is calculated based on the projected area of the indent divided by the applied force, also giving test units in kgf/mm 2. The Vickers microindentation test is carried out in a similar manner welling to the Vickers macroindentation tests, using the same pyramid.

5. Rockwell scale - Wikipedia

   en.wikipedia.org/wiki/Rockwell_scale

   A Rockwell hardness tester. The Rockwell scale is a hardness scale based on indentation hardness of a material. The Rockwell test measures the depth of penetration of an indenter under a large load (major load) compared to the penetration made by a preload (minor load). [1]

6. Spark testing - Wikipedia

   en.wikipedia.org/wiki/Spark_testing

   Spark testing is a method of determining the general classification of ferrous materials. It normally entails taking a piece of metal, usually scrap, and applying it to a grinding wheel in order to observe the sparks emitted. [1] These sparks can be compared to a chart or to sparks from a known test sample to determine the classification.

7. News, Politics, Sports, Mail & Latest Headlines - AOL.com

   homepage.aol.com

   Discover the latest breaking news in the U.S. and around the world — politics, weather, entertainment, lifestyle, finance, sports and much more.

8. 5 Tips to Make the Best Alcohol-Free Cocktails, According to ...

   www.aol.com/5-tips-best-alcohol-free-182900197.html

   Gone are the days of the sad mocktail — the cranberry cocktail topped with a bit of seltzer or a blend of every juice behind the bar. A growing number of bartenders are paying just as much ...

9. Tempering (metallurgy) - Wikipedia

   en.wikipedia.org/wiki/Tempering_(metallurgy)

   Tempering is usually performed after hardening, to reduce some of the excess hardness, and is done by heating the metal to some temperature below the critical point for a certain period of time, then allowing it to cool in still air. The exact temperature determines the amount of hardness removed, and depends on both the specific composition of ...