| 释义 |
marquenching, vbl. n. Metallurgy.|ˈmɑːkwɛntʃɪŋ|
[f. martensite n. + quenching vbl. n.]
A process similar to martempering but with the constant-temperature stage kept too short to allow isothermal transformation; also = martempering vbl. n. s.v. martemper v. So ˈmarquench v. trans.
1947Iron Age 3 July 52/1 Martempering consists of quenching from the austenitizing temperature to the Ms temperature..and holding this temperature until transformation from the austenite is complete... Marquenching is the term which is usually applied to interrupted quench only, without involving isothermal transformation. Ibid. 53/2 The specimen which was held at 475°F for only 1 min was really marquenched rather than martempered, since it was removed from the bath at about the time transformation would have had a chance to begin. 1956Jrnl. Iron & Steel Inst. CLXXXIII. 332/1 The author discusses the difference between marquenching and martempering and explains the trend of Bain's curve in case hardened steels for the differing carbon contents encountered. 1974Industrial Heating July 33 Marquenching instead of oil quenching resulted in the smallest growth..and the narrowest growth spread. 1984E. P. DeGarmo et al. Materials & Processes in Manuf. (ed. 6) vi. 148 If the piece is stabilized and then slowly cooled through the martensite transformation, the process is known as martempering or marquenching. 1985L. C. Love Princ. Metall. vii. 216 (caption) Schematic diagram of rapidly quenching austenite to an elevated temperature and allowing the entire cross section to transform at the same time. This is called marquenching. |