Abstract This article focuses on the strengthening mechanism of non-quenched and tempered steel to explain the strengthening mechanism and evaluation methods for a wide variety of nonquenched and tempered steels，as well as their applications to the engineering machinery industry．
YANG Hong-Gen, CUI Qing-Hong. Application and evaluation of non-quenched and tem pered steel in engineering m achinery field. Chinese Journal of Engineering Design, 2004, 11(4): 228-230.
