Abstract
In the conventional heat treatment process (CHT), a significant amount of compressive stress
occurs in the material as a result of the quenching process. After the tempering process, it is seen that the
materials lose those compressive stress. This loss can be explained by the formation of carbide structures and
the loss of tetragonality of the supersaturated martensite structure. The cryogenic treatment is a complementary
process that it has been given to a miscellany of materials to improve their mechanical and physical attributes. It
was first commercially recognized as an effective method in achieving complete martensitic transformation in
the alloyed steels. In this study, microstructural investigations were carried out in order to relate the
microstructural properties to the mechanical properties following the cryogenic treatment. For this purpose, the
conventional heat treatment (CHT) and the deep cryogenic treatment (DCT: -196°C) procedures were applied to
various medium carbon spring steels. The martensite lattice parameters and the amount of retained austenite
were measured by using high-resolution X-ray diffractometer. Rietveld analysis was used to deconvolute the
overlapping peaks of martensites.
Keywords
Details
| Primary Language | English |
|---|---|
| Subjects | Engineering |
| Journal Section | Articles |
| Authors | |
| Publication Date | December 31, 2022 |
| Published in Issue | Year 2022 |
