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Your search for "v" found 5 matching terms. Click here to search again.

Term	Definition
V	Chemical symbol for Vanadium.
Vacuum Arc Remelting	A process used for producing advanced steels to the most demanding and critical specifications, particularly in such areas as aerospace applications. The steel is first produced to a very close analysis and the resulting ingot is slowly remelted in a Vacuum Arc Remelting furnace for up to 14 hours. Such steels are, by necessity, expensive to manufacture.
Vacuum Degassing	A ladle of molten metal is placed within a chamber which is then evacuated. This reduces the gas content, particularly hydrogen, as well as reducing non- metallic inclusions. Modern secondary steel making processes using Vacuum Arc Degassing units that include automated stirring and control of temperature and chemical analysis, ensure a consistent and high quality product.
Vanadium	Steels containing vanadium have a much finer grain structure than steels of similar composition without vanadium. It raises the temperature at which grain coarsening sets in and increases hardenability where it is in solution in the austenite prior to quenching. It also lessens softening on tempering and confers secondary hardness on high speed steels. Vanadium is used in nitriding, heat resisting, tool and spring steels in conjunction with other alloying elements.
Vickers Hardness Test	A method of determining the hardness of steel whereby a diamond pyramid is pressed into the polished surface of the specimen and the diagonals of the impression are measured with a microscope fitted with a micrometer eye piece. The rate of application and duration are automatically controlled and the load can be varied.

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