Capítulos de libros
Study of age hardening behavior in a 350 grade maraging steel
Date
2015Registration in:
Carpenter, John S.; Bai, Chenguang; Escobedo, Juan Pablo; Hwang, Jiann-Yang; Ikhmayies, Shadia; Li, Bowen; Monteiro, Sergio Neves; Peng, Zhiwei; Zhang, Mingming, ed. Characterization of Minerals, Metals, and Materials 2015. Hoboken, John Wiley, 2015
9781119082460
Author
Carvalho, Leandro Gomes de
Plaut, Ronald Lesley
Martorano, Marcelo de Aquino
Padilha, Angelo Fernando
Institutions
Abstract
The age hardening behavior in the 480-600°C temperature range was studied in maraging steel 350. The age hardening at 480, 520, and 560°C was modeled by an equation derived from the Johnson-Mehl-Avrami-Kolmogorov (JMAK) model, while the overaging stage at 520, 560 and 600°C was examined usig a model based on JMAK for the early aging stages has good fitting with the experimental data in the 480-560° range. Furthermore, the presentation seems to occur in two stages at 480°C. Inaddition, the model based on the Orowan mechanism and on the Pardal model has good fitting at 520 and 560°C, but the Pardal model fitting is better than that of Orowan at 600°C. This behavior is due to the reversion of martensite, hich becomes significant when the temperature increases.