Modelling of Crack Growth in Single-Crystal Nickel-Base Superalloys.

• Superior document: Linköping Studies in Science and Technology. Dissertations Series ; v.2023
• Author: Busse, Christian.
• Place / Publishing House: Linköping : : Linkopings Universitet,, 2019.; {copy}2019.
• Year of Publication: 2019
• Edition: 1st ed.
• Language: English
• Series: Linköping Studies in Science and Technology. Dissertations Series
• Physical Description: 1 online resource (79 pages)

Table of Contents

Intro -- Preface -- Abstract -- Zusammenfassung -- Sammanfattning -- List of papers -- Contents -- Acronyms -- Part I - Background and Theory -- Introduction -- Background -- Aim of the work -- Outline -- Gas Turbines -- General description -- Single-crystal nickel-base superalloys in gas turbines and relevant loading conditions -- Nickel-Base Superalloys -- General description -- Single-crystal nickel-base superalloys -- Characteristic fracture behaviour of single-crystals -- Testing -- General overview -- Determination of the crystallographic orientations -- Fracture surfaces -- Heat tints -- Fatigue Crack Growth -- General description -- Fatigue crack growth modelling basis -- Stress intensity factor and M-Integral -- Crystallographic Crack Growth Model -- Crystallographic crack growth -- Crystallographic crack driving force -- Crack path prediction -- Crystallographic crack growth modelling -- Finite element-context -- Handling inelasticity -- Review of Appended Papers -- Conclusions and Outlook -- Conclusions -- Outlook -- References -- Part II - Appended Papers -- Paper I: A finite element study of the effect of crystal orientation and misalignment on the crack driving force in a single-crystal superalloy -- Paper II: Prediction of crystallographic cracking planes in a single-crystal nickel-base superalloy -- Paper III: Evaluation of the crystallographic fatigue crack growth rate in a single-crystal nickel-base superalloy -- Paper IV: Criteria evaluation for the transition of cracking modes in a single-crystal nickel-base superalloy -- Paper V: Challenges in crack propagation prediction in single-crystal nickel-base superalloys -- Paper VI: Three-dimensional LEFM prediction of fatigue crack propagation in a gas turbine disc material at component near conditions.