Zobrazeno 1 - 10
of 73
pro vyhledávání: '"Xufei Lu"'
Publikováno v:
Materials Research Letters, Vol 12, Iss 11, Pp 852-859 (2024)
The high yield ratio and low strain hardening ability of titanium alloys significantly limit their engineering applications. In this work, a Ti65Zr30Cu5 (at.%) alloy with nanoscale α laths was additively manufactured and achieved a high yield streng
Externí odkaz:
https://doaj.org/article/5664e9700e504fd7bed0f00fe53b96e9
Publikováno v:
Virtual and Physical Prototyping, Vol 19, Iss 1 (2024)
This study presents an innovative liquid-nitrogen cooling (LNC) strategy to address hydrogen porosity in Wire and Arc Additive Manufactured (WAAM) Al-Cu alloys, which negatively affects part properties. A coupled thermo-mechanical finite element mode
Externí odkaz:
https://doaj.org/article/cc25dbc19f684ac697ace620a69904a2
Publikováno v:
ACS Omega, Vol 8, Iss 48, Pp 46127-46143 (2023)
Externí odkaz:
https://doaj.org/article/0629c5778386421ca293d389a8f9d7bd
Autor:
Xufei Lu, Guohao Zhang, Michele Chiumenti, Miguel Cervera, Mehdi Slimani, Liang Ma, Lei Wei, Xin Lin
Publikováno v:
Virtual and Physical Prototyping, Vol 18, Iss 1 (2023)
Residual stresses, related distortions and cracks are detrimental in metallic Additive Manufacturing (AM). Previously developed stress-control strategies based on reducing thermal gradients hardly diminish the stress concentrations at the built basem
Externí odkaz:
https://doaj.org/article/5c79ab621efa4561a25f2f11fa7b9ebb
Publikováno v:
Materials Research Letters, Vol 11, Iss 1, Pp 60-68 (2023)
The achievement of fine equiaxed β grain with conventional intragranular (α-Ti+β-Ti) microstructure in additive manufacturing titanium alloy remains a big challenge. We conquer this challenge by synergistically controlling β-grains during both so
Externí odkaz:
https://doaj.org/article/27a1c7d289f649f08964d35354187206
Publikováno v:
Journal of Materials Research and Technology, Vol 17, Iss , Pp 1187-1199 (2022)
Self-regulation effect (SRE) is a unique phenomenon in laser blown powder directed energy deposition (DED), which can dynamically compensate the sloping deposition surface (within an acceptable tolerance) induced by the fluctuation of the fabricating
Externí odkaz:
https://doaj.org/article/65f3a4c8fc58413cab1172d1e1ec5050
Autor:
Xufei Lu, Guohao Zhang, Junjie Li, Miguel Cervera, Michele Chiumenti, Jing Chen, Xin Lin, Weidong Huang
Publikováno v:
Virtual and Physical Prototyping, Vol 16, Iss 4, Pp 387-403 (2021)
Additive manufacturing (AM) of titanium alloy entails severe microstructural heterogeneity and layer bands due to diverse thermal histories. While the thermal-microstructure relationship in AM has been reported, the details on how complex thermal his
Externí odkaz:
https://doaj.org/article/342ff54cc63a4fc0b0d1655b4e3f5a0f
Publikováno v:
Journal of Manufacturing and Materials Processing, Vol 7, Iss 2, p 64 (2023)
Additively manufactured thin-walled structures through selective laser melting (SLM) are of great interest in achieving carbon-neutral industrial manufacturing. However, residual stresses and warpages as well as recoater crashes often occur in SLM, l
Externí odkaz:
https://doaj.org/article/aa535c58c7774739b5d5857f86030e63
Autor:
Xufei Lu, Michele Chiumenti, Miguel Cervera, Junjie Li, Xin Lin, Liang Ma, Guohao Zhang, Enquan Liang
Publikováno v:
Materials & Design, Vol 202, Iss , Pp 109525- (2021)
This paper proposes a strategy to optimize the design of the substrate structures used in Additive Manufacturing (AM) by Directed Energy Deposition (DED) to minimize the residual stresses induced by this fabrication process. To this end, several nume
Externí odkaz:
https://doaj.org/article/8385474ca6ae4d688d45555a62ecb13d
Publikováno v:
Journal of Manufacturing and Materials Processing, Vol 5, Iss 4, p 138 (2021)
Residual stresses are one of the primary causes for the failure of parts or systems in metal additive manufacturing (AM), since they easily induce crack propagation and structural distortion. Although the formation of residual stresses has been exten
Externí odkaz:
https://doaj.org/article/cfe2ccf950c345e58c0383ccb3440638