| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1656334 | Surface and Coatings Technology | 2016 | 8 Pages |
•Low temperature gas carburizing (LTGC) on the PH 17-4 and 13-8Mo stainless steels (St.St) and i.•Investigation on the thermal stability of carburized layer were done.•By increasing the time and temperature of heat treatment, deviation from Bragg’s angel and asymmetry of peaks decrease.•Heating at upper time and temperatures, imerges other peaks of formed carbide (Fe3C).•Heat treatment at 400°C & 450°C for 2 h are the Critical time and temperatures (CTT), for the application of carburized 13-8Mo and 17-4, respectively.
The aim of this work is to investigate thermal stability of expanded martensite. For this purpose, two martensitic stainless steels, PH 17-4 and 13-8Mo, were low temperature gas carburized. After heat treatment, it was found out that thermal stability of expanded layer of PH 17-4 is higher than that of PH 13-8Mo. Auger Electron Spectroscopy and microhardness machines were used to investigate carbon concentration and hardness of samples, respectively. X-ray diffraction was done to study crystal structures of samples before and after heat treatment.
