A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Brinell tests have been carried out on tempered case-hardened steel, and on chromium-aluminum steel which had been nitrated by means of ammonia for 90 hr. at 510 deg. cent. so as to produce nitrated layer 0.8 mm. thick; latter steel had greater initial hardness, and this was retained to greater extent than in case of former, when steels were maintained at gradually increasing temperatures (from 180 to 600 deg.) for various periods of time. May: Tests on nitrided complex steels show increases in hardness particularly with chromium-tungstenvanadium steels, pearlitic and martensitis nickelvanadium steels, and nickel-manganese steels; presence of vanadium, especially in nickel steels, has important influence. See articles by same author in Genie Civil, vol. 91, nos. 2, 3 and 4, July 9, 16 and 23, pp. 38-43, 60-63 and 86-89, 29 figs. (See also - vol. 183, no. 21, Nov. 22, 1926, pp. 933-935)
Brinell tests have been carried out on tempered case-hardened steel, and on chromium-aluminum steel which had been nitrated by means of ammonia for 90 hr. at 510 deg. cent. so as to produce nitrated layer 0.8 mm. thick; latter steel had greater initial hardness, and this was retained to greater extent than in case of former, when steels were maintained at gradually increasing temperatures (from 180 to 600 deg.) for various periods of time. May: Tests on nitrided complex steels show increases in hardness particularly with chromium-tungstenvanadium steels, pearlitic and martensitis nickelvanadium steels, and nickel-manganese steels; presence of vanadium, especially in nickel steels, has important influence. See articles by same author in Genie Civil, vol. 91, nos. 2, 3 and 4, July 9, 16 and 23, pp. 38-43, 60-63 and 86-89, 29 figs. (See also - vol. 183, no. 21, Nov. 22, 1926, pp. 933-935)
Nitration of steels
Sur la nitruration des aciers
Guillet, L. (author)
1926
4 pages
29 Figs.
Article (Journal)
French
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