[{"citation":{"apa":"Heiland, S., Milkereit, B., Hoyer, K.-P., Zhuravlev, E., Keßler, O., &#38; Schaper, M. (2021). Requirements for Processing High-Strength AlZnMgCu Alloys with PBF-LB/M to Achieve Crack-Free and Dense Parts. <i>Materials</i>. <a href=\"https://doi.org/10.3390/ma14237190\">https://doi.org/10.3390/ma14237190</a>","short":"S. Heiland, B. Milkereit, K.-P. Hoyer, E. Zhuravlev, O. Keßler, M. Schaper, Materials (2021).","mla":"Heiland, Steffen, et al. “Requirements for Processing High-Strength AlZnMgCu Alloys with PBF-LB/M to Achieve Crack-Free and Dense Parts.” <i>Materials</i>, 2021, doi:<a href=\"https://doi.org/10.3390/ma14237190\">https://doi.org/10.3390/ma14237190</a>.","bibtex":"@article{Heiland_Milkereit_Hoyer_Zhuravlev_Keßler_Schaper_2021, title={Requirements for Processing High-Strength AlZnMgCu Alloys with PBF-LB/M to Achieve Crack-Free and Dense Parts}, DOI={<a href=\"https://doi.org/10.3390/ma14237190\">https://doi.org/10.3390/ma14237190</a>}, journal={Materials}, author={Heiland, Steffen and Milkereit, Benjamin and Hoyer, Kay-Peter and Zhuravlev, Evgeny and Keßler, Olaf and Schaper, Mirko}, year={2021} }","ama":"Heiland S, Milkereit B, Hoyer K-P, Zhuravlev E, Keßler O, Schaper M. Requirements for Processing High-Strength AlZnMgCu Alloys with PBF-LB/M to Achieve Crack-Free and Dense Parts. <i>Materials</i>. Published online 2021. doi:<a href=\"https://doi.org/10.3390/ma14237190\">https://doi.org/10.3390/ma14237190</a>","chicago":"Heiland, Steffen, Benjamin Milkereit, Kay-Peter Hoyer, Evgeny Zhuravlev, Olaf Keßler, and Mirko Schaper. “Requirements for Processing High-Strength AlZnMgCu Alloys with PBF-LB/M to Achieve Crack-Free and Dense Parts.” <i>Materials</i>, 2021. <a href=\"https://doi.org/10.3390/ma14237190\">https://doi.org/10.3390/ma14237190</a>.","ieee":"S. Heiland, B. Milkereit, K.-P. Hoyer, E. Zhuravlev, O. Keßler, and M. Schaper, “Requirements for Processing High-Strength AlZnMgCu Alloys with PBF-LB/M to Achieve Crack-Free and Dense Parts,” <i>Materials</i>, 2021, doi: <a href=\"https://doi.org/10.3390/ma14237190\">https://doi.org/10.3390/ma14237190</a>."},"year":"2021","has_accepted_license":"1","main_file_link":[{"url":"https://www.mdpi.com/1996-1944/14/23/7190/htm"}],"doi":"https://doi.org/10.3390/ma14237190","title":"Requirements for Processing High-Strength AlZnMgCu Alloys with PBF-LB/M to Achieve Crack-Free and Dense Parts","author":[{"last_name":"Heiland","id":"77250","full_name":"Heiland, Steffen","first_name":"Steffen"},{"full_name":"Milkereit, Benjamin","last_name":"Milkereit","first_name":"Benjamin"},{"full_name":"Hoyer, Kay-Peter","last_name":"Hoyer","first_name":"Kay-Peter"},{"first_name":"Evgeny","last_name":"Zhuravlev","full_name":"Zhuravlev, Evgeny"},{"first_name":"Olaf","full_name":"Keßler, Olaf","last_name":"Keßler"},{"first_name":"Mirko","last_name":"Schaper","full_name":"Schaper, Mirko"}],"date_created":"2021-11-29T08:23:43Z","date_updated":"2022-01-06T06:57:50Z","file":[{"date_created":"2021-11-29T08:19:19Z","creator":"heilands","date_updated":"2021-11-29T08:19:19Z","file_id":"28018","file_name":"2021_Heiland_MDPI Materials_Requirements for Processing High-Strength AlZnMgCu Alloys with PBF-LBM to Achieve Crack-Free and Dense Parts_print.pdf","access_level":"closed","file_size":2202343,"content_type":"application/pdf","relation":"main_file","success":1}],"status":"public","abstract":[{"text":"Processing aluminum alloys employing powder bed fusion of metals (PBF-LB/M) is becoming more attractive for the industry, especially if lightweight applications are needed. Unfortunately, high-strength aluminum alloys such as AA7075 are prone to hot cracking during PBF-LB/M, as well as welding. Both a large solidification range promoted by the alloying elements zinc and copper and a high thermal gradient accompanied with the manufacturing process conditions lead to or favor hot cracking. In the present study, a simple method for modifying the powder surface with titanium carbide nanoparticles (NPs) as a nucleating agent is aimed. The effect on the microstructure with different amounts of the nucleating agent is shown. For the aluminum alloy 7075 with 2.5 ma% titanium carbide nanoparticles, manufactured via PBF-LB/M, crack-free samples with a refined microstructure having no discernible melt pool boundaries and columnar grains are observed. After using a two-step ageing heat treatment, ultimate tensile strengths up to 465 MPa and an 8.9% elongation at break are achieved. Furthermore, it is demonstrated that not all nanoparticles used remain in the melt pool during PBF-LB/M.","lang":"eng"}],"type":"journal_article","publication":"Materials","language":[{"iso":"eng"}],"file_date_updated":"2021-11-29T08:19:19Z","ddc":["620"],"keyword":["grain refinement","crack reduction","laser beam melting","aluminum alloy","titanium carbide","nanoparticle","PBF-LB/M"],"user_id":"77250","department":[{"_id":"9"},{"_id":"158"},{"_id":"219"}],"_id":"28017"},{"date_created":"2021-09-09T15:40:08Z","title":"Additively processed TiAl6Nb7 alloy for biomedical applications","quality_controlled":"1","year":"2021","language":[{"iso":"eng"}],"keyword":["Laser beam melting","titanium alloy","TiAl6Nb7","biomedical engineering","implants"],"publication":"Materialwissenschaft und Werkstofftechnik","abstract":[{"text":"Laser beam melting (LBM) is an advanced manufacturing technology providing\r\nspecial features and the possibility to produce complex and individual parts directly\r\nfrom a CAD model. TiAl6V4 is the most common used titanium alloy particularly\r\nin biomedical applications. TiAl6Nb7 shows promising improvements especially\r\nregarding biocompatible properties due to the substitution of the hazardous\r\nvanadium. This work focuses on the examination of laser beam melted TiAl6Nb7.\r\nFor microstructural investigation scanning electron microscopy including energydispersive\r\nx-ray spectroscopy as well as electron backscatter diffraction are utilized.\r\nThe laser beam melted related acicular microstructure as well as the corresponding\r\nmechanical properties, which are determined by hardness measurements\r\nand tensile tests, are investigated. The laser beam melted alloy meets,\r\nexcept of breaking elongation A, the mechanical demands like ultimate tensile\r\nstrength Rm, yield strength Rp0.2, Vickers hardness HV of international standard\r\nISO 5832-11. Next steps contain comparison between TiAl6Nb7 and TiAl6V4 in\r\ndifferent conditions. Further investigations aim at improving mechanical properties\r\nof TiAl6Nb7 by heat treatments and assessment of their influence on the microstructure\r\nas well as examination regarding the corrosive behavior in human bodylike\r\nconditions.","lang":"eng"}],"author":[{"orcid":"0000-0002-3732-2236","last_name":"Hein","full_name":"Hein, Maxwell","id":"52771","first_name":"Maxwell"},{"last_name":"Hoyer","id":"48411","full_name":"Hoyer, Kay-Peter","first_name":"Kay-Peter"},{"first_name":"Mirko","last_name":"Schaper","full_name":"Schaper, Mirko","id":"43720"}],"volume":52,"date_updated":"2023-06-01T14:38:03Z","doi":"10.1002/mawe.202000288","publication_status":"published","publication_identifier":{"issn":["0933-5137","1521-4052"]},"citation":{"ieee":"M. Hein, K.-P. Hoyer, and M. Schaper, “Additively processed TiAl6Nb7 alloy for biomedical applications,” <i>Materialwissenschaft und Werkstofftechnik</i>, vol. 52, pp. 703–716, 2021, doi: <a href=\"https://doi.org/10.1002/mawe.202000288\">10.1002/mawe.202000288</a>.","chicago":"Hein, Maxwell, Kay-Peter Hoyer, and Mirko Schaper. “Additively Processed TiAl6Nb7 Alloy for Biomedical Applications.” <i>Materialwissenschaft Und Werkstofftechnik</i> 52 (2021): 703–16. <a href=\"https://doi.org/10.1002/mawe.202000288\">https://doi.org/10.1002/mawe.202000288</a>.","bibtex":"@article{Hein_Hoyer_Schaper_2021, title={Additively processed TiAl6Nb7 alloy for biomedical applications}, volume={52}, DOI={<a href=\"https://doi.org/10.1002/mawe.202000288\">10.1002/mawe.202000288</a>}, journal={Materialwissenschaft und Werkstofftechnik}, author={Hein, Maxwell and Hoyer, Kay-Peter and Schaper, Mirko}, year={2021}, pages={703–716} }","mla":"Hein, Maxwell, et al. “Additively Processed TiAl6Nb7 Alloy for Biomedical Applications.” <i>Materialwissenschaft Und Werkstofftechnik</i>, vol. 52, 2021, pp. 703–16, doi:<a href=\"https://doi.org/10.1002/mawe.202000288\">10.1002/mawe.202000288</a>.","short":"M. Hein, K.-P. Hoyer, M. Schaper, Materialwissenschaft Und Werkstofftechnik 52 (2021) 703–716.","ama":"Hein M, Hoyer K-P, Schaper M. Additively processed TiAl6Nb7 alloy for biomedical applications. <i>Materialwissenschaft und Werkstofftechnik</i>. 2021;52:703-716. doi:<a href=\"https://doi.org/10.1002/mawe.202000288\">10.1002/mawe.202000288</a>","apa":"Hein, M., Hoyer, K.-P., &#38; Schaper, M. (2021). Additively processed TiAl6Nb7 alloy for biomedical applications. <i>Materialwissenschaft Und Werkstofftechnik</i>, <i>52</i>, 703–716. <a href=\"https://doi.org/10.1002/mawe.202000288\">https://doi.org/10.1002/mawe.202000288</a>"},"intvolume":"        52","page":"703-716","user_id":"43720","department":[{"_id":"158"}],"_id":"24086","article_type":"original","type":"journal_article","status":"public"}]