Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Gengxing Luo"'
Autor:
Dandan Qu, Xin Lin, Kun Zhang, Zhiyong Li, Zezhong Wang, Guoliang Liu, Yang Meng, Gengxing Luo, Ruoyan Wang, Xilong Yu
Publikováno v:
Virtual and Physical Prototyping, Vol 18, Iss 1 (2023)
Hybrid rocket engines suffer from the restricted mechanical properties and low regression rates of current polymeric fuel grains. We propose a three-dimensional printed aluminium (Al) nested composite fuel grain with millimetre-scale lattice pores (r
Externí odkaz:
https://doaj.org/article/8bf6c53a402544aa9faf096f547c9f99
Publikováno v:
Journal of Materials Processing Technology. 209:2180-2185
The technology of laser quenching is widely used to improve the surface properties of steels in surface engineering. Generally, laser quenching of steels can lead to two important results. One is the generation of residual stress in the surface layer
Publikováno v:
Surface Engineering. 24:332-336
The fracture toughness and interfacial adhesion properties of a coating on its substrate are considered to be crucial intrinsic parameters determining performance and reliability of coating-substrate system. In this work, the fracture toughness and i
Publikováno v:
Surface and Coatings Technology. 202:2878-2884
The thermally induced interfacial delamination problem of a segmented coating is investigated using finite element method (FEM). The coating-substrate system, modeled as a coated semi-infinite medium with periodic segmentation cracks within coating,
Degradation failure features of chromium-plated gun barrels with a laser-discrete-quenched substrate
Publikováno v:
Surface and Coatings Technology. 201:9558-9564
The effect of substrate laser-discrete quenching on the degradation failure of chromium-plated gun barrels was metallurgically investigated. The results show that substrate laser-discrete quenching changes the failure patterns of chromium coatings du
Publikováno v:
Acta Materialia. 55:4349-4358
A mechanical model of a coating/laser pre-quenched steel substrate specimen with a crack oriented perpendicular to the interface between the coating and the hardened layer is developed to quantify the effects of the residual stress and hardness gradi
Publikováno v:
Surface and Coatings Technology. 201:2208-2216
A mechanical model of a laser transformation hardening specimen with a crack in the middle of the hardened layer is developed to quantify the effects of the residual stress and hardness gradient on crack driving force in terms of J-integral. It is as
Characterization of a laser-discrete quenched steel substrate/chromium system by dissolving coatings
Publikováno v:
Surface and Coatings Technology. 201:3709-3714
A laser-discrete quenched steel (LDQS) substrate/as-deposited chromium (top high-contraction (HC) and underlying low-contraction (LC) chromium) system was investigated by dissolving coatings in order to reveal the mechanism that the service life of t
Publikováno v:
Surface and Coatings Technology. 201:815-821
The interfacial debonding of an inner-surface-coated hollow cylinder with multiple pre-existing surface cracks is presented. The cylinder is assumed to be exposed to convective heating at the inner surface while the outer surface is perfectly insulat
Publikováno v:
Surface and Coatings Technology. 201:902-907
The interface of a laser-discrete-quenched steel substrate and as-deposited chromium electroplate was investigated by ion beam etching, dissolving-substrate-away and using a Vickers microhardness tester, in an attempt to reveal the mechanism that the