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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Metal science and heat treatment 7 (1966), S. 588-593 
    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. The addition of rare earth metals to 40KhNMA steel increases the impact strength of transverse and longitudinal samples. The increase of the impact strength of transverse samples of 40KhNMA steel for a given technique of introducing rare earth metals is determined by the change in the type and shape of nonmetallic inclusions. 2. The addition of rare earth metals decreases the surface tension of the grain boundaries of structural steel, and this increases the impact strength. 3. The addition of rare earth metals to the ingot or to the ladle slows down the rare of growth of austenite grains; this is related to the amount, the shape, and the type of inclusions. 4. The rare earth metals decrease the hardenability of the steel, and this is the consequence of the decrease of the grain size and the increased contamination of the material with nonmetallic inclusions.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Metal science and heat treatment 8 (1966), S. 137-139 
    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. The highest elastic limit of steels with 0.6% C results from the addition of 0.6–1.5% Si. 2. The optimum tempering temperature is 300°C (no higher than 400°C), which produces a stable troostite structure.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Metal science and heat treatment 8 (1966), S. 380-382 
    ISSN: 1573-8973
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Metal science and heat treatment 8 (1966), S. 419-420 
    ISSN: 1573-8973
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Metal science and heat treatment 8 (1966), S. 736-738 
    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. After high-temperature thermomechanical treatment of 55S2 steel alloyed with chromium, moblydenum, tungsten, and vanadium, the strength and the yield point are increased by 15–30 kg/mm2 and the plasticity is increased 1.5–3 times; the higher the austenization temperature (900–1050°C) the higher the plasticity. 2. The hardening of the steels as the result of HTTMT with low and medium reduction lasts through high-temperature tempering. For elastic components a tempering temperature of 350–400°C is recommended. 3. The recrystallization of austenite in 55S2 steel occurs comparatively rapidly in the process of HTTMT. With increasing degrees and temperatures of deformation this process is accelerated. When 55S2 steel is alloyed with chromium, molybdenum, tungsten, and vanadium, the rate of recrystallization decreases 4–10 times, which favors the use of HTTMT for parts of considerable size.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Metal science and heat treatment 8 (1966), S. 771-772 
    ISSN: 1573-8973
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Metal science and heat treatment 6 (1965), S. 742-745 
    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. Rolling of case hardened quenched steel produces an additionally hardened layer as thick as 1 mm. At the same time, the hardness increases by 100 HV units. 2. The effect of rolling depends on the type of steel, the preliminary heat treatment, and the value of the contact stress. 3. The increase in hardness is due to the decomposition of residual austenite and the formation of fine grains of martensite. At the same time, there is an increase in the width of the martensite and austenite x-ray interference lines. 4. For 12Kh2N3MA and 20KhN3A steels, the stress producing hardening is 30,000–35,000 kg/cm2; the optimum contact stress is 45,000–50,000 kg/cm2.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Metal science and heat treatment 6 (1964), S. 519-520 
    ISSN: 1573-8973
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Metal science and heat treatment 7 (1966), S. 755-757 
    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: Summary 1. We found that the inclusions along the boundaries have different shapes in rolled 40KhNMA steel with and without ferrocerium. Probably this is one of the reasons for the difference is the impact strength of samples in the transverse direction. 2. We showed that the rare earth metals do not prevent inclusions along the grain boundaries.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Springer
    Metal science and heat treatment 11 (1969), S. 384-386 
    ISSN: 1573-8973
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
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