A Phase Field Model for the Evolution of Martensite Microstructures in Metastable Austenites
- This thesis is concerned with a phase field model for martensitic transformations in metastable austenitic steels. Within the phase field approach an order parameter is introduced to indicate whether the present phase is austenite or martensite. The evolving microstructure is described by the evolution of the order parameter, which is assumed to follow the time-dependent Ginzburg-Landau equation. The elastic phase field model is enhanced in two different ways to take further phenomena into account. First, dislocation movement is considered by a crystal plasticity setting. Second, the elastic model for martensitic transformations is combined with a phase field model for fracture. Finite element simulations are used to study the single effects separately which contribute to the microstructure formation.
Author: | Regina Müller |
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URN: | urn:nbn:de:hbz:386-kluedo-44384 |
ISBN: | 978-3-942695-13-8 |
Series (Serial Number): | Forschungsbericht / Technische Universität Kaiserslautern, Lehrstuhl für Technische Mechanik (12) |
Advisor: | Ralf Müller |
Document Type: | Doctoral Thesis |
Language of publication: | English |
Date of Publication (online): | 2016/09/06 |
Year of first Publication: | 2016 |
Publishing Institution: | Technische Universität Kaiserslautern |
Granting Institution: | Technische Universität Kaiserslautern |
Acceptance Date of the Thesis: | 2016/07/15 |
Date of the Publication (Server): | 2016/09/06 |
Page Number: | X, 117 |
Faculties / Organisational entities: | Kaiserslautern - Fachbereich Maschinenbau und Verfahrenstechnik |
DDC-Cassification: | 6 Technik, Medizin, angewandte Wissenschaften / 620 Ingenieurwissenschaften und Maschinenbau |
Licence (German): | Standard gemäß KLUEDO-Leitlinien vom 30.07.2015 |