Zobrazeno 1 - 10
of 224
pro vyhledávání: '"Jan Van Humbeeck"'
Autor:
Rui Xi, Hao Jiang, Guichuan Li, Zhihui Zhang, Huiliang Wei, Guoqun Zhao, Jan Van Humbeeck, Xiebin Wang
Publikováno v:
International Journal of Extreme Manufacturing, Vol 6, Iss 4, p 045002 (2024)
Post-heat treatment is commonly employed to improve the microstructural homogeneity and enhance the mechanical performances of the additively manufactured metallic materials. In this work, a ternary (NiTi) _91 Nb _9 (at.%) shape memory alloy was prod
Externí odkaz:
https://doaj.org/article/c82eb6d76ad24f8c8b761ed987ec07f0
Autor:
Rui Xi, Hao Jiang, Guichuan Li, Zhihui Zhang, Guoqun Zhao, Kim Vanmeensel, Sergey Kustov, Jan Van Humbeeck, Xiebin Wang
Publikováno v:
Virtual and Physical Prototyping, Vol 18, Iss 1 (2023)
NiTi-Fe ternary shape memory alloys were produced by laser powder bed fusion (L-PBF) using the pre-alloyed NiTi and elemental Fe powders. A large process window exists to fabricate dense NiTiFe0.3 and NiTiFe0.5 alloys, while severe cracks occur in th
Externí odkaz:
https://doaj.org/article/8b1f096b28e6452babe7f9a59908a29f
Publikováno v:
Materials, Vol 15, Iss 14, p 5073 (2022)
Besides the unique shape memory effect and superelasticity, NiTi alloys also show excellent damping properties. However, the high damping effect is highly temperature-dependent, and only exists during cooling or heating over the temperature range whe
Externí odkaz:
https://doaj.org/article/b0e7885cd74b4fccaf317e37d3b12cc4
Autor:
Suraj Dinkar Jadhav, Pushkar Prakash Dhekne, Etienne Brodu, Brecht Van Hooreweder, Sasan Dadbakhsh, Jean-Pierre Kruth, Jan Van Humbeeck, Kim Vanmeensel
Publikováno v:
Materials & Design, Vol 198, Iss , Pp 109369- (2021)
Fabrication of fully dense and highly conductive copper alloy parts via laser-based additive manufacturing (L-AM) is challenging due to the high optical reflectivity of copper at λ = 1060 – 1080 nm and high thermal conductivity. To overcome this,
Externí odkaz:
https://doaj.org/article/c3781dc1bff844109b07d26592427430
Autor:
Maria L. Montero-Sistiaga, Saeid Pourbabak, Jan Van Humbeeck, Dominique Schryvers, Kim Vanmeensel
Publikováno v:
Materials & Design, Vol 165, Iss , Pp - (2019)
In order to increase the production rate during selective laser melting (SLM), a high power laser with a large beam diameter is used to build fully dense Hastelloy X parts. Compared to SLM with a low power and small diameter beam, the productivity wa
Externí odkaz:
https://doaj.org/article/b85225892de74f5d9f9d16e291743223
Influence of Carbon Nanoparticle Addition (and Impurities) on Selective Laser Melting of Pure Copper
Autor:
Suraj Dinkar Jadhav, Sasan Dadbakhsh, Jozef Vleugels, Johan Hofkens, Peter Van Puyvelde, Shoufeng Yang, Jean-Pierre Kruth, Jan Van Humbeeck, Kim Vanmeensel
Publikováno v:
Materials, Vol 12, Iss 15, p 2469 (2019)
The addition of 0.1 wt % carbon nanoparticles significantly improved the optical absorption and flowability of gas-atomized copper powder. This facilitated selective laser melting (SLM) by reducing the required laser energy density to obtain 98% dens
Externí odkaz:
https://doaj.org/article/b489f1bbf4de4084b00e4c6158dc8498
Publikováno v:
Materials, Vol 11, Iss 9, p 1683 (2018)
Due to unique functional and mechanical properties, NiTi shape memory alloys are one of the most promising metallic functional materials. However, the poor workability limits the extensive utilization of NiTi alloys as components of complex shapes. T
Externí odkaz:
https://doaj.org/article/3be935c991414d29b6b120c578b63b2e
Publikováno v:
Metals, Vol 7, Iss 11, p 493 (2017)
The linear and non-linear internal friction, effective Young’s modulus, and amplitude-dependent modulus defect of a Ti50Ni46.1Fe3.9 alloy have been studied after different heat treatments, affecting hydrogen content, at temperatures of 13–300 K,
Externí odkaz:
https://doaj.org/article/5fc297124f164c59829ebd97d3bde3fe
Publikováno v:
Materials, Vol 10, Iss 10, p 1174 (2017)
Linear and non-linear internal friction and the effective Young’s modulus of a Ni50.8Ti49.2 alloy have been studied after different heat treatments, affecting hydrogen content, over wide ranges of temperatures (13–300 K) and strain amplitudes (10
Externí odkaz:
https://doaj.org/article/a9eb00fb528d4e2986ed283048509a5f
Publikováno v:
Shape memory and superelasticity
The effect of thermal cycling parameters on the phase transformation temperatures of micron and submicron grain size recrystallized Ni-Ti microwires was investigated. The suppression of martensitic transformation by thermal cycling was found to enhan