A unified temperature-dependent constitutive model for Haynes 230 alloy for fatigue and creep analysis at high temperature

A unified temperature-dependent constitutive model for Haynes 230 alloy for fatigue and creep analysis at high temperature | Authorea try { document.documentElement.classList.add('js'); } catch (e) { } var _gaq = _gaq || []; _gaq.push(['_setAccount', 'G-8VDV14Y67G']); _gaq.push(['_trackPageview']); (function() { var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true; ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js'; var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s); })(); Skip to main content Preprints Collections Wiley Open Research IET Open Research Ecological Society of Japan All Collections About About Authorea FAQs Contact Us Quick Search anywhere Search for preprint articles, keywords, etc. Search Search ADVANCED SEARCH SCROLL This is a preprint and has not been peer reviewed. Data may be preliminary. 18 August 2025 V1 Latest version Share on A unified temperature-dependent constitutive model for Haynes 230 alloy for fatigue and creep analysis at high temperature Authors : Rou Du , Qiang Liu , Nan Li , Yueguang Wei , and Xiaoming Liu 0000-0003-0235-1894 [email protected] Authors Info & Affiliations https://doi.org/10.22541/au.175549325.55054671/v1 Published Fatigue & Fracture of Engineering Materials & Structures Version of record Peer review timeline 121 views 66 downloads Contents Abstract Supplementary Material Information & Authors Metrics & Citations View Options References Figures Tables Media Share Abstract The Haynes 230 alloy is a candidate structuralmaterial for the high-temperature components in advanced nuclear and energy systems because of its excellent creep resistance and oxidation resistance. However, accurately modeling its inelastic behavior, including rate-independent cyclic plasticity, rate-dependent creep, and stress relaxation under multi-axial loading and different temperatures, remains challenging. This study presents atemperature-dependent unified constitutive model, in which the nonlinear kinematic hardening incorporates the thermally activated static recovery term. A Kocks–Mecking-based rate-regime transition links the plastic and viscous deformation regimes. Model parameters are determined via a hybrid calibration strategy: elastic and hardening terms are directly calibrated, while static recovery parameters are inversely identified using the Bayesian inference method based on creep and relaxation test data. The model is validated against uniaxial tension, low cycle fatigue, creep, stress relaxation, and multiaxial notched specimen tests. The close agreement between predictions and experiments demonstrates the model’s robustness and applicability for structural integrity assessment ofhigh-temperature components under complex thermomechanical conditions. Supplementary Material File (manuscript-ffems-du08.15.docx) Download 4.07 MB Information & Authors Information Version history V1 Version 1 18 August 2025 Peer review timeline Published Fatigue & Fracture of Engineering Materials & Structures Version of Record 6 Mar 2026 Published Copyright This work is licensed under a Non Exclusive No Reuse License. Keywords cyclic plasticity high temperature fatigue steels and alloys Authors Affiliations Rou Du Chinese Academy of Sciences Institute of Mechanics View all articles by this author Qiang Liu China Institute of Atomic Energy View all articles by this author Nan Li China Institute of Atomic Energy View all articles by this author Yueguang Wei Peking University College of Engineering View all articles by this author Xiaoming Liu 0000-0003-0235-1894 [email protected] Chinese Academy of Sciences Institute of Mechanics View all articles by this author Metrics & Citations Metrics Article Usage 121 views 66 downloads .FvxKWukQNSOunydq8rnd { width: 100px; } Citations Download citation Rou Du, Qiang Liu, Nan Li, et al. A unified temperature-dependent constitutive model for Haynes 230 alloy for fatigue and creep analysis at high temperature. Authorea . 18 August 2025. DOI: https://doi.org/10.22541/au.175549325.55054671/v1 If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download. For more information or tips please see 'Downloading to a citation manager' in the Help menu . Format Please select one from the list RIS (ProCite, Reference Manager) EndNote BibTex Medlars RefWorks Direct import Tips for downloading citations document.getElementById('citMgrHelpLink').addEventListener('click', function() { popupHelp(this.href); return false; }); $(".js__slcInclude").on("change", function(e){ if ($(this).val() == 'refworks') $('#direct').prop("checked", false); $('#direct').prop("disabled", ($(this).val() == 'refworks')); }); View Options View options PDF View PDF Figures Tables Media Share Share Share article link Copy Link Copied! Copying failed. 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