marquenchingとは 意味・読み方・使い方

名詞

marquenching (usually uncountable, plural marquenchings)

1. Synonym of martempering.

   Hypernyms: quenching, hardening < heat treatment, heat-treating

   • 2008, “Chapter 11: Heat Treatment of Steel”, in Flake C. Campbell, editor, Elements of Metallurgy and Engineering Alloys‎, ASM International, →ISBN, page 195:

     11.6.1 Martempering / The most frequent type of interrupted quenching process is called martempering, shown in Fig. 11.25. In martempering, the part is quenched into a molten salt bath at a temperature just above the M_s temperature. When the part reaches thermal equilibrium, but before bainite starts to form, it is removed from the salt bath and allowed to air cool past the M_s temperature, thus forming martensite. The objective is to delay the cooling just above the martensitic transformation for long enough to equalize the temperature throughout the piece and minimize distortion, cracking, and residual stresses. It should be noted that even though this process is called martempering, it is not a tempering process; instead, it is a hardening process. The martensite produced by martempering still requires a subsequent tempering process. In fact, this process is sometimes more correctly referred to as marquenching.