ISSN:
1573-8973
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Conclusions 1. Lowering the carbon content of tungsten-free high-speed steel 8M3F3S of the \'EI277 and \'EI260 type leads to better mechanical and technological properties (the red hardness increases, the optimal range of quenching temperatures is broader) and reduces the amount of retained austenite after quenching.The addition of silicon also improves the mechanical properties and the wear resistance of tools and the grindability of the steel. 2. After quenching and tempering, steel 8M3F3S consists of highly alloyed martensite with inclusions of excess carbides of the MC type, a small quantity of carbides of the M6C type, special carbides of the MC, M2C, and M7C3 types precipitated during tempering, and traces of alloyed cementite (M3C). 3. Steel 8M3F3S is recommended for high-productivity wood-working tools and fine metal-working tools operating under impact loads. 4. The use of steel 8M3F3S will economize scarce alloying elements and increase the durability of some types of tools under certain operating conditions.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00704980
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