The flow stress of AM IN 625 under conditions of high strain and strain rate

dc.contributor.authorAnanda-Kumar, Rajesh
dc.contributor.authorLopez-Hawa, Homar
dc.contributor.authorMoscoso-Kingsley, Wilfredo
dc.contributor.authorMadhavan, Viswanathan
dc.descriptionClick on the DOI link to access the article (may not be free).en_US
dc.description.abstractAdditively manufactured (AM) nickel superalloy (In 625) with known processing history and quasi-static properties has been investigated under extreme strains up to about 100% and strain rate up to about 10 4 /s by machining. A model for the calculation of the component of force that is due to indentation by the tool cutting edge was utilized to correct the measured shear force and material flow stress. The results are compared to flow stress measurements produced by Kolsky compression testing under strains of about 25% and strain rate of about 10 3 /s. The highly instrumented setups utilized for the machining testing made possible an accurate description of the strain and strain rate at the primary shear zone (PSZ), and the temperature at the tool rake face that prevailed throughout the machining. The strain and strain rate were determined by digital image correlation. The temperature was determined by through-the-tool thermography. Differences observable during the cutting and dynamic compression of additive and wrought In 625 are outlined.en_US
dc.description.sponsorshipDepartment of Energy, National Nuclear Security Administration under Award Number DE-NA0003222.en_US
dc.identifier.citationAnanda-Kumar R.K., Lopez-Hawa H., Moscoso-Kingsley W., Madhavan V. (2019) The Flow Stress of AM IN 625 under Conditions of High Strain and Strain Rate. In: Kimberley J., Lamberson L., Mates S. (eds) Dynamic Behavior of Materials, Volume 1. Conference Proceedings of the Society for Experimental Mechanics Series. Springer, Chamen_US
dc.publisherSpringer, Chamen_US
dc.relation.ispartofseriesDynamic Behavior of Materials;v.1
dc.rights.holder© The Society for Experimental Mechanics, Inc. 2019en_US
dc.subjectAdditive manufacturingen_US
dc.subjectHigh strainen_US
dc.subjectHigh strain rateen_US
dc.subjectHigh temperatureen_US
dc.subjectKolsky compressionen_US
dc.titleThe flow stress of AM IN 625 under conditions of high strain and strain rateen_US
dc.typeConference paperen_US
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