G. Maistro, C. Oikonomou, S. Hosseini, S.R. Brorson
{"title":"Quenching and Hot Isostatic Pressing of Additively Manufactured Tool Steel","authors":"G. Maistro, C. Oikonomou, S. Hosseini, S.R. Brorson","doi":"10.2139/ssrn.3785874","DOIUrl":null,"url":null,"abstract":"A maraging grade and a modified H13 type tool steel were used as testing materials to study the possibility of healing printing defects while combining a solutionizing/hardening treatment to the components. Extensive mechanical testing and microstructural analysis showed that the high-pressure heat treatment can stabilize retained austenite in maraging grades, but has no effects on the aging kinetics. A HIP temperature of 850°C is not sufficient to heal printing defects in highly defective maraging components, while 1020°C were sufficient to fully heal a modified H13 component. Increasing HIP temperature over 1140°C causes lower impact toughness, due to grain growth and/or precipitation and growth of MnS.","PeriodicalId":18731,"journal":{"name":"Materials Processing & Manufacturing eJournal","volume":"39 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2021-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Materials Processing & Manufacturing eJournal","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.2139/ssrn.3785874","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 2
Abstract
A maraging grade and a modified H13 type tool steel were used as testing materials to study the possibility of healing printing defects while combining a solutionizing/hardening treatment to the components. Extensive mechanical testing and microstructural analysis showed that the high-pressure heat treatment can stabilize retained austenite in maraging grades, but has no effects on the aging kinetics. A HIP temperature of 850°C is not sufficient to heal printing defects in highly defective maraging components, while 1020°C were sufficient to fully heal a modified H13 component. Increasing HIP temperature over 1140°C causes lower impact toughness, due to grain growth and/or precipitation and growth of MnS.
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