Impact of the thermomechanical load on subsurface phase transformations during cryogenic turning of metastable austenitic steels
- When machining metastable austenitic stainless steel with cryogenic cooling, a deformation-induced phase transformation from γ-austenite to α′-martensite can be realized in the workpiece subsurface. This leads to a higher microhardness and thus improved fatigue and wear resistance. A parametric and a non-parametric model were developed in order to investigate the correlation between the thermomechanical load in the workpiece subsurface and the resulting α′-martensite content. It was demonstrated that increasing passive forces and cutting forces promoted the deformation-induced phase transformation, while increasing temperatures had an inhibiting effect. The feed force had no significant influence on the α′-martensite content. With the proposed models it is now possible to estimate the α′-martensite content during cryogenic turning by means of in-situ measurement of process forces and temperatures.
Author: | Hendrik HotzORCiD, Benjamin Kirsch, Jan C. Aurich |
---|---|
URN: | urn:nbn:de:hbz:386-kluedo-77844 |
DOI: | https://doi.org/10.1007/s10845-020-01626-6 |
ISSN: | 1572-8145 |
Parent Title (English): | Journal of Intelligent Manufacturing |
Publisher: | Springer Nature - Springer |
Document Type: | Article |
Language of publication: | English |
Date of Publication (online): | 2024/03/07 |
Year of first Publication: | 2020 |
Publishing Institution: | Rheinland-Pfälzische Technische Universität Kaiserslautern-Landau |
Date of the Publication (Server): | 2024/03/07 |
Issue: | 32 |
Page Number: | 18 |
First Page: | 877 |
Last Page: | 894 |
Source: | https://link.springer.com/article/10.1007/s10845-020-01626-6 |
Faculties / Organisational entities: | Kaiserslautern - Fachbereich Maschinenbau und Verfahrenstechnik |
DDC-Cassification: | 6 Technik, Medizin, angewandte Wissenschaften / 620 Ingenieurwissenschaften und Maschinenbau |
Collections: | Open-Access-Publikationsfonds |
Licence (German): | Zweitveröffentlichung |