{"volume":14,"department":[{"_id":"9"},{"_id":"158"}],"doi":"10.3390/ma14237190","date_created":"2023-02-02T14:31:05Z","publication_status":"published","author":[{"full_name":"Heiland, Steffen","last_name":"Heiland","id":"77250","first_name":"Steffen"},{"last_name":"Milkereit","full_name":"Milkereit, Benjamin","first_name":"Benjamin"},{"id":"48411","first_name":"Kay-Peter","last_name":"Hoyer","full_name":"Hoyer, Kay-Peter"},{"last_name":"Zhuravlev","full_name":"Zhuravlev, Evgeny","first_name":"Evgeny"},{"last_name":"Kessler","full_name":"Kessler, Olaf","first_name":"Olaf"},{"last_name":"Schaper","full_name":"Schaper, Mirko","id":"43720","first_name":"Mirko"}],"publication_identifier":{"issn":["1996-1944"]},"title":"Requirements for Processing High-Strength AlZnMgCu Alloys with PBF-LB/M to Achieve Crack-Free and Dense Parts","abstract":[{"text":"<jats:p>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.</jats:p>","lang":"eng"}],"intvolume":"        14","issue":"23","date_updated":"2023-06-01T14:34:46Z","citation":{"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}, volume={14}, DOI={<a href=\"https://doi.org/10.3390/ma14237190\">10.3390/ma14237190</a>}, number={237190}, journal={Materials}, publisher={MDPI AG}, author={Heiland, Steffen and Milkereit, Benjamin and Hoyer, Kay-Peter and Zhuravlev, Evgeny and Kessler, Olaf and Schaper, Mirko}, year={2021} }","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>, vol. 14, no. 23, Art. no. 7190, 2021, doi: <a href=\"https://doi.org/10.3390/ma14237190\">10.3390/ma14237190</a>.","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>. 2021;14(23). doi:<a href=\"https://doi.org/10.3390/ma14237190\">10.3390/ma14237190</a>","short":"S. Heiland, B. Milkereit, K.-P. Hoyer, E. Zhuravlev, O. Kessler, M. Schaper, Materials 14 (2021).","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>, <i>14</i>(23), Article 7190. <a href=\"https://doi.org/10.3390/ma14237190\">https://doi.org/10.3390/ma14237190</a>","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>, vol. 14, no. 23, 7190, MDPI AG, 2021, doi:<a href=\"https://doi.org/10.3390/ma14237190\">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> 14, no. 23 (2021). <a href=\"https://doi.org/10.3390/ma14237190\">https://doi.org/10.3390/ma14237190</a>."},"article_number":"7190","publisher":"MDPI AG","type":"journal_article","keyword":["General Materials Science"],"_id":"41506","status":"public","year":"2021","user_id":"43720","publication":"Materials","quality_controlled":"1","language":[{"iso":"eng"}]}