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https://hdl.handle.net/11147/11874
Title: | Comparing Compression Deformation and Rate Sensitivity of Additively Manufactured and Extruded-Annealed 316l Alloys | Authors: | Enser, Samed Yavaş, Hakan Arslan Hamat, Burcu Aydın, Hüseyin Kafadar, Gülten Tanrıkulu, A. Alptuğ Zeytin Kazdal, Havva Öztürk, Fahrettin Güden, Mustafa |
Keywords: | Additive manufacturing Compression Hardness |
Publisher: | Springer | Abstract: | The deformation behavior of a selective-laser-melt-processed 316-L alloy (SLM-316L) under compression was determined together with a commercial annealed-extruded 316L alloy bar (C-316L) for comparison. Strain rate jump tests and hardness tests on the untested and compression tested samples were also performed. Extensive microscopic observations on the deformed and undeformed samples showed a twinning-dominated deformation in SLM-316L, similar to twinning-induced-plasticity steels, while a martensitic transformation-dominated deformation in C-316L alloy, similar to transformation-induced-plasticity steels. Within the studied quasi-static strain rate regime, the measured higher strain rate sensitivity of SLM-316L was ascribed to the lower distances between the nano-twins, in the level of 100 nm, than the distances between martensite plates, in the level of 1000 nm. A higher hardness increase in the martensite transformation region as compared with the twinned region proved the higher work hardening of C-316L. The hardness tests in the micron and sub-micron levels further confirmed the previously determined relatively low resistances of the dislocation cell walls (sub-grain) to the dislocation motion in SLM-316L alloy. | Description: | Scientific and Technological Research Council of Turkey within the support program 1515 for research and laboratory developments | URI: | https://doi.org/10.1007/s11665-021-06340-9 https://hdl.handle.net/11147/11874 |
ISSN: | 1059-9495 |
Appears in Collections: | Mechanical Engineering / Makina Mühendisliği Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection |
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File | Description | Size | Format | |
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Enser2021_Article.pdf | Article (Makale) | 3.53 MB | Adobe PDF | View/Open |
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