Interplay of irradiation stress and phase stabilizer in determining the direction of martensitic transformation in SS316

IF 2.8 3区物理与天体物理 Q3 CHEMISTRY, PHYSICAL

Radiation Physics and Chemistry Pub Date : 2025-01-18 DOI:10.1016/j.radphyschem.2025.112546

Sarita Ahlawat , Nandini Garg , K.K. Pandey , Velaga Srihari , Debdulal Kabiraj , Manju Bala , Sonu Hooda , Niharendu Choudhury , Aniruddha Biswas

{"title":"Interplay of irradiation stress and phase stabilizer in determining the direction of martensitic transformation in SS316","authors":"Sarita Ahlawat , Nandini Garg , K.K. Pandey , Velaga Srihari , Debdulal Kabiraj , Manju Bala , Sonu Hooda , Niharendu Choudhury , Aniruddha Biswas","doi":"10.1016/j.radphyschem.2025.112546","DOIUrl":null,"url":null,"abstract":"<div><div>It is expected that radiation damage in austenitic stainless steels caused by Au and Ag ions will result in a forward martensitic transformation (MT), which should be proportional to the induced radiation stresses and hence the fluence. However, contrary to this intuitive understanding, we find that up to a critical fluence, instead of showing a forward MT, cold-worked SS316 shows restoration of austenite through reverse MT. Our x-ray diffraction (XRD) and magnetization measurements confirm these results. It is observed that despite a lower DPA in Au-damaged steel as compared to Ag, forward MT is observed only in the former case. With the help of ab-initio calculations, we have explained why reverse MT due to Au ions is more than the Ag ions till a critical fluence. Our studies show a strong interplay of irradiation stress and phase stabilizer in determining the direction of MT in SS316.</div></div>","PeriodicalId":20861,"journal":{"name":"Radiation Physics and Chemistry","volume":"229 ","pages":"Article 112546"},"PeriodicalIF":2.8000,"publicationDate":"2025-01-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Radiation Physics and Chemistry","FirstCategoryId":"92","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0969806X25000386","RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}

引用次数: 0

Abstract

It is expected that radiation damage in austenitic stainless steels caused by Au and Ag ions will result in a forward martensitic transformation (MT), which should be proportional to the induced radiation stresses and hence the fluence. However, contrary to this intuitive understanding, we find that up to a critical fluence, instead of showing a forward MT, cold-worked SS316 shows restoration of austenite through reverse MT. Our x-ray diffraction (XRD) and magnetization measurements confirm these results. It is observed that despite a lower DPA in Au-damaged steel as compared to Ag, forward MT is observed only in the former case. With the help of ab-initio calculations, we have explained why reverse MT due to Au ions is more than the Ag ions till a critical fluence. Our studies show a strong interplay of irradiation stress and phase stabilizer in determining the direction of MT in SS316.

查看原文本刊更多论文

求助全文

约1分钟内获得全文求助全文

来源期刊

Radiation Physics and Chemistry 化学-核科学技术

CiteScore

5.60

自引率

17.20%

发文量

574

审稿时长

12 weeks

期刊介绍： Radiation Physics and Chemistry is a multidisciplinary journal that provides a medium for publication of substantial and original papers, reviews, and short communications which focus on research and developments involving ionizing radiation in radiation physics, radiation chemistry and radiation processing. The journal aims to publish papers with significance to an international audience, containing substantial novelty and scientific impact. The Editors reserve the rights to reject, with or without external review, papers that do not meet these criteria. This could include papers that are very similar to previous publications, only with changed target substrates, employed materials, analyzed sites and experimental methods, report results without presenting new insights and/or hypothesis testing, or do not focus on the radiation effects.