martemperingn.

Brit.

/ˈmɑːtɛmp(ə)rɪŋ/, U.S.

/ˈmɑrˌtɛmp(ə)rɪŋ/

Origin: Formed within English, by compounding. Etymons: martensite n., tempering n.

Etymology: < mar- (in martensite n.) + tempering n.

Metallurgy.

A method of tempering steel that reduces its tendency to crack or distort, by rapid quenching to a temperature just above that at which martensite begins to form, allowing the temperature to equalize throughout (esp. long enough for the isothermal transformation of austenite to martensite to begin), and then cooling slowly.

ΘΚΠ

society > occupation and work > industry > working with specific materials > working with metal > [noun] > hardening, tempering, or annealing > other types of hardening

case-hardening1666

precipitation hardening1926

martempering1943

shot-peening1944

marquenching1947

1943 B. F. Shepherd in Iron Age 28 Jan. 50/1 Martempering is a term used to describe a heat treating operation whereby martensite is produced with a minimum of residual hardening strains.

1943 B. F. Shepherd in Metal Progress July 105/2 I have coined the term ‘martempering’ to describe this operation of hardening by cooling quickly.

1953 L. Aitchison & W. I. Pumphrey Engin. Steels iii. 116 Martempering is unlikely to supplant the direct quenching of normal, commercial steels.

1968 E. R. Petty Physical Metall. Engin. Materials xi. 206 Quench stresses and attendant distortion or cracking may be reduced by..an interrupted quench (martempering).

1989 A. C. Davies Sci. & Pract. Welding (ed. 9) I. ii. 99 A process termed martempering can be used to obtain a martensitic structure, without the disadvantages of a drastic quench.

This entry has been updated (OED Third Edition, December 2000; most recently modified version published online March 2022).

单词	martempering
释义	martemperingn. Brit. /ˈmɑːtɛmp(ə)rɪŋ/, U.S. /ˈmɑrˌtɛmp(ə)rɪŋ/ Origin: Formed within English, by compounding. Etymons: martensite n., tempering n. Etymology: < mar- (in martensite n.) + tempering n. Metallurgy. A method of tempering steel that reduces its tendency to crack or distort, by rapid quenching to a temperature just above that at which martensite begins to form, allowing the temperature to equalize throughout (esp. long enough for the isothermal transformation of austenite to martensite to begin), and then cooling slowly. ΘΚΠ society > occupation and work > industry > working with specific materials > working with metal > [noun] > hardening, tempering, or annealing > other types of hardening case-hardening1666 precipitation hardening1926 martempering1943 shot-peening1944 marquenching1947 1943 B. F. Shepherd in Iron Age 28 Jan. 50/1 Martempering is a term used to describe a heat treating operation whereby martensite is produced with a minimum of residual hardening strains. 1943 B. F. Shepherd in Metal Progress July 105/2 I have coined the term ‘martempering’ to describe this operation of hardening by cooling quickly. 1953 L. Aitchison & W. I. Pumphrey Engin. Steels iii. 116 Martempering is unlikely to supplant the direct quenching of normal, commercial steels. 1968 E. R. Petty Physical Metall. Engin. Materials xi. 206 Quench stresses and attendant distortion or cracking may be reduced by..an interrupted quench (martempering). 1989 A. C. Davies Sci. & Pract. Welding (ed. 9) I. ii. 99 A process termed martempering can be used to obtain a martensitic structure, without the disadvantages of a drastic quench. This entry has been updated (OED Third Edition, December 2000; most recently modified version published online March 2022). < n.1943
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