Zobrazeno 1 - 10
of 215
pro vyhledávání: '"Lars Nyborg"'
Publikováno v:
npj Materials Degradation, Vol 8, Iss 1, Pp 1-12 (2024)
Abstract Additive manufacturing opens new possibilities for designing light-weight structures using aluminium alloys. The microstructure of two Al alloys and their corrosion resistance in NaCl and natural seawater environments were investigated. The
Externí odkaz:
https://doaj.org/article/0ead371ccce746cbb6a8f05d1f3429db
Publikováno v:
Journal of Materials Research and Technology, Vol 30, Iss , Pp 4667-4681 (2024)
Stochastic defects in materials manufactured via laser powder bed fusion (LPBF) can severely compromise mechanical performance and are challenging to predict and detect, thus motivating the development of defect mitigation strategies. Particle oxidat
Externí odkaz:
https://doaj.org/article/3d3e8dfb3800448e87951cf543a8dabc
Autor:
Bharat Mehta, Sven Bengtsson, Dmitri Riabov, Elanghovan Natesan, Karin Frisk, Johan Ahlström, Lars Nyborg
Publikováno v:
Materials & Design, Vol 244, Iss , Pp 113160- (2024)
Powder bed fusion-laser beam (PBF-LB), an additive manufacturing process, takes advantage of rapid cooling rates (103-106 K/s) to enable novel aluminium alloys. This study reports the mechanical properties of one such alloy system (Al-Mn-Cr-Zr based)
Externí odkaz:
https://doaj.org/article/a6a196ddc7f7448081b2ba49880d1dcb
Autor:
Claudia Schwerz, Johan Moverare, Vishal Sundar, Benjamin A. Bircher, Alain Küng, Dmitri Riabov, Lars Nyborg
Publikováno v:
Journal of Materials Research and Technology, Vol 29, Iss , Pp 4200-4215 (2024)
Defects in materials manufactured via laser powder bed fusion challenge this manufacturing process' dependability and may prevent it from being comprehensively used for structural components, particularly those intended to operate under dynamic loadi
Externí odkaz:
https://doaj.org/article/5a820e68fb26439890a5c5daeca10788
Publikováno v:
Metals, Vol 14, Iss 8, p 914 (2024)
Vanadis 4E (V4E) is a powder metallurgical cold work tool steel predominantly used in application with demand for wear resistance, high hardness, and toughness. It is of interest to have a processing route that enables full density starting from clea
Externí odkaz:
https://doaj.org/article/51b26b9746ee45619fa7646642a038c3
Autor:
Isac Lazar, Bharat Mehta, Vendulka Bertschová, Sri Bala Aditya Malladi, Zhe Ren, Srashtasrita Das, Johannes Hagemann, Gerald Falkenberg, Karin Frisk, Anders Mikkelsen, Lars Nyborg
Publikováno v:
European Journal of Materials, Vol 4, Iss 1 (2024)
AbstractAl-alloys incorporating Mn, Cr and Zr, tailored for powder bed fusion-laser beam processes with solubilities three times equilibrium have recently been developed that yield a high strength. Mn and Cr-enriched precipitates that form during pri
Externí odkaz:
https://doaj.org/article/060de5fdc02241d694fbaaeb01e823d7
Autor:
Maurizio Arena, Bharat Mehta, Tommaso Tirelli, Paolo Ambrogiani, Martina Castaldo, Sven Bengtsson, Lars Nyborg
Publikováno v:
Applied Sciences, Vol 14, Iss 11, p 4647 (2024)
The recent advances achieved in additive manufacturing (AM) technology demonstrate the potential to realize customized metal components, ensuring weight reduction opportunities. These benefits make AM attractive for high-cost aerospace applications,
Externí odkaz:
https://doaj.org/article/e39c6752d1544cf3a7f7b36b9aa5fa35
Publikováno v:
Journal of Materials Research and Technology, Vol 22, Iss , Pp 1065-1075 (2023)
A good understanding of failure mechanisms can help us improve the lifetime of the dies. This paper presents a case study investigating the wear behaviour of a QRO90 die insert utilized for stamping uncoated boron-alloyed high-strength steel sheets.
Externí odkaz:
https://doaj.org/article/a3d9d84fc42649dea5b89180aec14751
Autor:
Bharat Mehta, Tatiana Mishurova, Sergei Evsevleev, Henning Markötter, Giovanni Bruno, Eduard Hryha, Lars Nyborg, Eero Virtanen
Publikováno v:
Materials & Design, Vol 226, Iss , Pp 111602- (2023)
This study addressed a 7017 Al-alloy tailored for powder bed fusion – laser beam (PBF-LB) process. The alloy was prepared by mixing 3 wt% Zr and 0.5 wt% TiC powder to standard pre-alloyed 7017 grade aluminium powder. This made printing of the alloy
Externí odkaz:
https://doaj.org/article/587014f02e454dc4a6eeafde333345e3
Publikováno v:
Materials & Design, Vol 224, Iss , Pp 111393- (2022)
Durability is a critical factor for hot stamping dies from an economic point of view. Refurbishing the dies by depositing new material instead of replacement is a promising method to reduce the cost. For this reason, a newly developed maraging steel
Externí odkaz:
https://doaj.org/article/221606b68d08461fa2568c018455e24f