Zobrazeno 1 - 10
of 458
pro vyhledávání: '"Peter D Lee"'
Autor:
Da Guo, Rubén Lambert-Garcia, Samy Hocine, Xianqiang Fan, Henry Greenhalgh, Ravi Shahani, Marta Majkut, Alexander Rack, Peter D Lee, Chu Lun Alex Leung
Publikováno v:
International Journal of Extreme Manufacturing, Vol 6, Iss 5, p 055601 (2024)
Spatter during laser powder bed fusion (LPBF) can induce surface defects, impacting the fatigue performance of the fabricated components. Here, we reveal and explain the links between vapour depression shape and spatter dynamics during LPBF of an Al-
Externí odkaz:
https://doaj.org/article/5f5caa62806c4482b0348cf38d05de99
Publikováno v:
Materials & Design, Vol 233, Iss , Pp 112207- (2023)
Auxetic lattices exhibit a negative Poisson’s ratio and excellent energy absorption capability. Here, we investigate the compressive performance of auxetic cubic chiral structures. By utilising finite element analysis (FEA) verified by interrupted
Externí odkaz:
https://doaj.org/article/b3bfba00848d48ffb033eb6902dbda19
Autor:
Agathe Heyraud, Francesca Tallia, David Sory, Hung-Kai Ting, Anna Tchorzewska, Jingwen Liu, Hannah L. Pilsworth, Peter D. Lee, John V. Hanna, Sara M. Rankin, Julian R. Jones
Publikováno v:
Frontiers in Bioengineering and Biotechnology, Vol 11 (2023)
Introduction: Hybrids consist of inorganic and organic co-networks that are indistinguishable above the nanoscale, which can lead to unprecedented combinations of properties, such as high toughness and controlled degradation.Methods: We present 3D pr
Externí odkaz:
https://doaj.org/article/be0fd93a3054418492dda20a27fe66a0
Autor:
David T. Rees, Chu Lun Alex Leung, Joe Elambasseril, Sebastian Marussi, Saurabh Shah, Shashidhara Marathe, Milan Brandt, Mark Easton, Peter D. Lee
Publikováno v:
Materials & Design, Vol 231, Iss , Pp 112031- (2023)
Laser powder bed fusion (LPBF) additive manufacturing of 2XXX series Al alloys could be used for low volume specialist aerospace components, however, such alloys exhibit hot cracking susceptibility that can lead to component failure. In this study, w
Externí odkaz:
https://doaj.org/article/c32aa128be3e431481b32bcb03a7b715
Autor:
Lorenzo Massimi, Samuel J. Clark, Sebastian Marussi, Adam Doherty, Saurabh M. Shah, Joachim Schulz, Shashidhara Marathe, Christoph Rau, Marco Endrizzi, Peter D. Lee, Alessandro Olivo
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-8 (2022)
Abstract In this work, the application of a time resolved multi-contrast beam tracking technique to the investigation of the melting and solidification process in metals is presented. The use of such a technique allows retrieval of three contrast cha
Externí odkaz:
https://doaj.org/article/8cfec5f1cb2c485b88ad7112a9b41933
Autor:
R. Patrick Xian, Claire L. Walsh, Stijn E. Verleden, Willi L. Wagner, Alexandre Bellier, Sebastian Marussi, Maximilian Ackermann, Danny D. Jonigk, Joseph Jacob, Peter D. Lee, Paul Tafforeau
Publikováno v:
Scientific Data, Vol 9, Iss 1, Pp 1-10 (2022)
Measurement(s) Human left lung Technology Type(s) X-Ray Phase-Contrast Imaging
Externí odkaz:
https://doaj.org/article/2471418d6dc94d60b99ee7984241f0e5
Autor:
Fabio Arzilli, Margherita Polacci, Giuseppe La Spina, Nolwenn Le Gall, Edward W. Llewellin, Richard A. Brooker, Rafael Torres-Orozco, Danilo Di Genova, David A. Neave, Margaret E. Hartley, Heidy M. Mader, Daniele Giordano, Robert Atwood, Peter D. Lee, Florian Heidelbach, Mike R. Burton
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-14 (2022)
In situ 4D experiments at high temperature and moderate pressure reveal that rapid dendritic crystallization in hydrous basaltic magmas promotes a rheological transition within minutes, controlling magma mobility within the Earth’s crust.
Externí odkaz:
https://doaj.org/article/07c9fbea66a04e0bb559b4f74bf1599a
Blue laser directed energy deposition of aluminum with synchronously enhanced efficiency and quality
Autor:
An Wang, Qianglong Wei, Sheng Luo, Zijue Tang, Huihui Yang, Yi Wu, Chu Lun Alex Leung, Peter D. Lee, Haowei Wang, Hongze Wang
Publikováno v:
Additive Manufacturing Letters, Vol 5, Iss , Pp 100127- (2023)
Directed energy deposition (DED) of aluminum with infrared lasers faces many processing issues, e.g., poor formability, pore formation, high reflectivity, all lowering the productivity. In this paper, we developed and applied a 2 kW high-power (450 n
Externí odkaz:
https://doaj.org/article/6e51c18a56a34df780bd68751e833082
Autor:
Yuze Huang, Tristan G. Fleming, Samuel J. Clark, Sebastian Marussi, Kamel Fezzaa, Jeyan Thiyagalingam, Chu Lun Alex Leung, Peter D. Lee
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-11 (2022)
Understanding the keyhole porosity formation is important in laser powder bed fusion. Here the authors reveal the dynamics of keyhole fluctuation, and collapse that induces bubble formation with three main stages of evolution; growth, shrinkage, and
Externí odkaz:
https://doaj.org/article/a3151a7706104803972265847d19c959
Autor:
Chu Lun Alex Leung, Dawid Luczyniec, Enyu Guo, Sebastian Marussi, Robert C. Atwood, Martina Meisnar, Ben Saunders, Peter D. Lee
Publikováno v:
Advanced Science, Vol 9, Iss 36, Pp n/a-n/a (2022)
Abstract Laser powder bed fusion (LPBF) can produce high‐value metallic components for many industries; however, its adoption for safety‐critical applications is hampered by the presence of imperfections. The interdependency between imperfections
Externí odkaz:
https://doaj.org/article/1574fa65c75c42b09e5b6915418f1a3c