Nitralloyn.

Brit.

/nʌɪˈtralɔɪ/, U.S.

/ˌnaɪˈtrælɔɪ/

Forms: also with lower-case initial.

Origin: Formed within English, by compounding. Etymons: nitriding n., nitridation n., alloy n.

Etymology: < nitr- (in nitriding n. or nitridation n.) + alloy n.

A proprietary name for: any of a range of alloy steels specially manufactured for nitriding and usually containing (among other elements) about one per cent of aluminium and 0.2 to 0.5 per cent of carbon.

ΘΚΠ

society > occupation and work > materials > derived or manufactured material > metal > steel > [noun] > alloy steels

silver steel1831

Invar1902

high-speed steel1903

stalloy1906

Nitralloy1928

1928 Machinery 31 478/2 Nitralloys are suitable for crankshafts, camshafts, timing gears, wrist pins, worms,..etc.

1939 Fortune Nov. 156/1 The greatest development..has been a group of nitralloys, which, with special processing, produce the hardest steel surface known.

1952 J. Wulff et al. Metall. for Engineers x. 182 Steels (especially Nitralloy, which contains aluminium) may be case-hardened by heating in ammonia at 450–540°C.

1989 A. C. Davies Sci. & Pract. Welding (ed. 9) I. ii. 103 Nitriding or nitrarding. This process consists of hardening the surface of ‘nitralloy steels’ (alloy steels containing aluminium and nickel) by heating the steel to approximately 500°C in an atmosphere of nitrogen.

This entry has been updated (OED Third Edition, December 2003; most recently modified version published online March 2022).

单词	nitralloy
释义	Nitralloyn. Brit. /nʌɪˈtralɔɪ/, U.S. /ˌnaɪˈtrælɔɪ/ Forms: also with lower-case initial. Origin: Formed within English, by compounding. Etymons: nitriding n., nitridation n., alloy n. Etymology: < nitr- (in nitriding n. or nitridation n.) + alloy n. A proprietary name for: any of a range of alloy steels specially manufactured for nitriding and usually containing (among other elements) about one per cent of aluminium and 0.2 to 0.5 per cent of carbon. ΘΚΠ society > occupation and work > materials > derived or manufactured material > metal > steel > [noun] > alloy steels silver steel1831 Invar1902 high-speed steel1903 stalloy1906 Nitralloy1928 1928 Machinery 31 478/2 Nitralloys are suitable for crankshafts, camshafts, timing gears, wrist pins, worms,..etc. 1939 Fortune Nov. 156/1 The greatest development..has been a group of nitralloys, which, with special processing, produce the hardest steel surface known. 1952 J. Wulff et al. Metall. for Engineers x. 182 Steels (especially Nitralloy, which contains aluminium) may be case-hardened by heating in ammonia at 450–540°C. 1989 A. C. Davies Sci. & Pract. Welding (ed. 9) I. ii. 103 Nitriding or nitrarding. This process consists of hardening the surface of ‘nitralloy steels’ (alloy steels containing aluminium and nickel) by heating the steel to approximately 500°C in an atmosphere of nitrogen. This entry has been updated (OED Third Edition, December 2003; most recently modified version published online March 2022). < n.1928
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