Zobrazeno 1 - 10
of 698
pro vyhledávání: '"heterogeneous microstructure"'
Autor:
Hang Zhang, Yue Gao, Rongguang Li, Boshu Liu, Shanshan Li, Yan Tang, Yuehong Zhang, Gaowu Qin
Publikováno v:
Journal of Materials Research and Technology, Vol 33, Iss , Pp 8687-8697 (2024)
In this work, we compared the effects of bimodal microstructure and heterogeneous microstructure on the mechanical properties and strengthening mechanisms of ZK60 alloy. The bimodal microstructure is composed of coarse un-dynamically recrystallized (
Externí odkaz:
https://doaj.org/article/5014391a344b49e7a66adfbb4cbe4926
Publikováno v:
Journal of Materials Research and Technology, Vol 33, Iss , Pp 5976-5986 (2024)
In this paper, 316L-containing Ti–6Al–4V alloy was fabricated by laser powder bed fusion (LPBF) through mixing Ti–6Al–4V and 4.5 wt% 316L powders, and the dynamic compressive mechanical properties and deformation mechanism at different strain
Externí odkaz:
https://doaj.org/article/7a6badeaf33946c284c54373a7a4389b
Publikováno v:
Journal of Materials Research and Technology, Vol 33, Iss , Pp 673-682 (2024)
Fatigue property is an important index for novel high-entropy alloys (HEAs) before their engineering applications. Here we engineer a Al0·3CoCrFeNi HEA with hierarchically heterogeneous microstructure by cold rolling and annealing treatment, which i
Externí odkaz:
https://doaj.org/article/ad03b44ded594d7cb92589d476c354c1
Publikováno v:
Journal of Materials Research and Technology, Vol 33, Iss , Pp 471-479 (2024)
An ultra-high strain rate (104 s−1) dynamic plastic deformation treatment at liquid nitrogen temperature (LNT-DPD) followed by annealing is carried out to obtain dual heterogeneity of grain size and dislocation density in an equiatomic CrCoNi mediu
Externí odkaz:
https://doaj.org/article/70cc5d74676b4e61bc0b68bef632e140
Publikováno v:
Virtual and Physical Prototyping, Vol 19, Iss 1 (2024)
This study employed the effect of sub-critical annealing heat treatment on the microstructure and anisotropy of the hybrid additive manufactured TC11 alloy. The results demonstrate that after sub-critical annealing, a gradient microstructure with the
Externí odkaz:
https://doaj.org/article/6b2684e48f034dba987a7c4a9eb52d33
Publikováno v:
Materials & Design, Vol 246, Iss , Pp 113328- (2024)
Achieving exceptional ductility in ultra-high strength steels has long been a formidable challenge, particularly when the yield strength reaches 2.0 GPa. In this study, we have designed an innovative tri-phase lamellar microstructure in medium Mn ste
Externí odkaz:
https://doaj.org/article/c4d10076e0d84fb2a3d3dd63a9d738ea
Publikováno v:
Journal of Materials Research and Technology, Vol 30, Iss , Pp 5894-5904 (2024)
Coarse austenite grains are unavoidable in the low carbon steels processed by twin-roll strip casting. Unfortunately, the polygonal ferrite (PF) grains cannot be refined by conventional on-line cooling process, resulting in low strength. In this work
Externí odkaz:
https://doaj.org/article/7885ec7a6b6345bebd90f479c26483b4
Publikováno v:
Materials & Design, Vol 243, Iss , Pp 113064- (2024)
This work introduced a facile method for fabricating heterostructures in a medium Mn steel via a direct warm rolling process. The heavy warm rolling promoted the transformation of metastable austenite (∼12.2 vol%) into hard domain α’ martensite,
Externí odkaz:
https://doaj.org/article/a9c7291016874ac7a93ee86a57dc938f
Publikováno v:
Journal of Materials Research and Technology, Vol 29, Iss , Pp 3606-3613 (2024)
Cu–Al2O3/Cu laminated dual heterogeneous microstructure composites with alternating coarse/fine grain distributions were prepared using a combination of accumulative roll bonding and annealing processes. The average layer thickness of the Al2O3/Cu
Externí odkaz:
https://doaj.org/article/db7dbba6fefb491086be950ae50f86bc
Publikováno v:
Journal of Materials Research and Technology, Vol 29, Iss , Pp 1962-1970 (2024)
Recently, medium and high-entropy alloys with heterogeneous features have exhibited excellent synergistic effects of strength and toughness. In this work, we have produced a series of cast CrCoNi medium entropy alloys with various heterogeneous micro
Externí odkaz:
https://doaj.org/article/bf42ebcd23c34ee6a75752f75cdbb8fd