Effect of Porosity on the Elastic Modulus of the Compacts Made of a Titanium Powder Synthesized from Titanium Hydride

{"title":"Effect of Porosity on the Elastic Modulus of the Compacts Made of a Titanium Powder Synthesized from Titanium Hydride","authors":"A. B. Ankudinov,&nbsp;V. A. Zelenskii,&nbsp;N. P. Cherezov,&nbsp;V. S. Erasov,&nbsp;I. V. Saikov,&nbsp;M. I. Alymov","doi":"10.1134/S0036029524702264","DOIUrl":null,"url":null,"abstract":"<p><b>Abstract</b>—The compressive properties of titanium having various degrees of porosity fabricated by powder metallurgy methods from a powder mixture of titanium hydride TiH₂ and a pore forming agent (ammonium bicarbonate NH₄HCO₃) are studied. Sintering is performed in vacuum or argon at 1150 and 1200°C. A change in the volume fraction of ammonium bicarbonate from 0 to 60% is shown to control the porosity of titanium samples from 3 to 59%. The compressive elastic modulus of porous titanium is found to decrease from 50 to 4 GPa when the porosity increases from 3 to 59%. The sintering atmosphere and a change in the sintering temperature by 50°C are shown to insignificantly affect the elastic modulus: it changes by ≈10%.</p>","PeriodicalId":769,"journal":{"name":"Russian Metallurgy (Metally)","volume":"2024 5","pages":"1228 - 1232"},"PeriodicalIF":0.4000,"publicationDate":"2025-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Russian Metallurgy (Metally)","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.1134/S0036029524702264","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"METALLURGY & METALLURGICAL ENGINEERING","Score":null,"Total":0}