Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Cynthia Sin Ting Chang"'
Autor:
Camille Pauzon, Steven Van Petegem, Eduard Hryha, Cynthia Sin Ting Chang, Samy Hocine, Helena Van Swygenhoven, Charlotte de Formanoir, Sophie Dubiez-Le Goff
Publikováno v:
European Journal of Materials, Vol 2, Iss 1, Pp 422-435 (2022)
The utilisation of helium as process gas in laser powder bed fusion limits the generation of Ti-6Al-4V hot and incandescent spatters and enhances their cooling rate. In the present study, operando X-ray diffraction using synchrotron X-rays permits to
Externí odkaz:
https://doaj.org/article/b445c2fb29ad40409168c98f681dc77a
Autor:
Ming Chen, Marco Simonelli, Steven Van Petegem, Yau Yau Tse, Cynthia Sin Ting Chang, Malgorzata Grazyna Makowska, Dario Ferreira Sanchez, Helena Moens-Van Swygenhoven
Publikováno v:
Materials & Design, Vol 225, Iss , Pp 111458- (2023)
During laser-powder bed fusion (l-PBF) the printed material is subjected to multiple fast heating and cooling cycles when the laser interacts with neighboring tracks or layers above. The complex thermal history influences the final microstructure and
Externí odkaz:
https://doaj.org/article/141878b685a545bf897be80fa6b5099a
Autor:
Daniel Grolimund, Samy Hocine, Dario Ferreira Sanchez, Nicola Casati, Helena Van Swygenhoven, G. Tinti, Tuerdi Maimaitiyili, Cynthia Sin Ting Chang, Steven Van Petegem
Publikováno v:
Materials Today. 34:30-40
Laser based additive manufacturing allows to build a designed shape layer-by-layer, offering versatility and flexibility to many metallurgical sectors. The fast cooling rates and repeated heat cycles depending on the laser and scanning parameters are
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::be65ec2e8b61da89c21cc2b6917612ed
https://doi.org/10.1016/j.mattod.2019.10.001
https://doi.org/10.1016/j.mattod.2019.10.001
Autor:
Ming Chen, Steven Van Petegem, Zhiyi Zou, Marco Simonelli, Yau Yau Tse, Cynthia Sin Ting Chang, Malgorzata Grazyna Makowska, Dario Ferreira Sanchez, Helena Moens-Van Swygenhoven
Publikováno v:
Additive Manufacturing. 59:103173
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::02eb3be6dbd653a8f76a035dd3598c4e
https://doi.org/10.1016/j.addma.2022.103173
https://doi.org/10.1016/j.addma.2022.103173
Publikováno v:
Acta Materialia. 91:355-364
The processes taking place during natural ageing (NA) of the aluminium alloy Al–0.4Mg–0.4Si (wt.%) are characterised by positron annihilation lifetime spectroscopy carried out both in situ during ageing and ex situ after cooling down samples to l
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::40d139ba8e77ea384c35dff66029b511
https://doi.org/10.1016/j.actamat.2015.02.019
https://doi.org/10.1016/j.actamat.2015.02.019
Publikováno v:
Materials Science Forum. :33-38
Early stages of clustering in quenched Al-Mg-Si alloys during natural ageing were studied by positron annihilation lifetime spectroscopy utilizing its unique sensitivity to electron density differences in various atomic defects. Two different positro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5e12d493d3af41c424556723f0f79b58
https://doi.org/10.4028/www.scientific.net/msf.794-796.33
https://doi.org/10.4028/www.scientific.net/msf.794-796.33
Publikováno v:
International Journal of Materials Research. 103:980-986
The kinetics of clustering in Al–Mg–Si alloy is studied by means of Kinetic Monte Carlo simulations. The simulations take into account the probability of vacancy jumping to nearest neighbour sites. This probability is calculated by considering bo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::441e05aa2e3cac110574f3301cd2ada2
https://doi.org/10.3139/146.110798
https://doi.org/10.3139/146.110798
Publikováno v:
International Journal of Materials Research. 103:955-961
The clustering kinetics of Al–Mg–Si alloys are studied by means of differential scanning calorimetry. Five alloys with different Mg and Si contents from 0.4 to 1.1 at.% are used. Two overlapping cluster peaks are observed in the heat flow curves;
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9bb725c4ee6e59f5cea8c0137a81721a
https://doi.org/10.3139/146.110796
https://doi.org/10.3139/146.110796
Publikováno v:
Ultramicroscopy. 111:701-705
Early stages of cluster formation in an Al–Si–Mg alloy were investigated by atom probe tomography and evaluated by a newly developed statistical method based on the nearest neighbour distributions. After solutionising and quenching, an alloy samp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e7fbbb205daf1c61350c3f586a176fa8
https://doi.org/10.1016/j.ultramic.2010.11.022
https://doi.org/10.1016/j.ultramic.2010.11.022
Autor:
Cynthia Sin Ting Chang, Matthew D. H. Lay, John Banhart, Anita J. Hill, Zeqin Liang, Nelia Wanderka
Publikováno v:
Advanced Engineering Materials. 12:559-571
The natural aging behavior of pure ternary Al-Mg-Si alloys is investigated by measuring hardness, electrical resistivity and positron lifetime, as well as carrying out thermal analysis and atom probe microscopy. It is found that several distinct temp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aa08c69ca44eeb4cbae97dae234cbf58
https://doi.org/10.1002/adem.201000041
https://doi.org/10.1002/adem.201000041