Zobrazeno 1 - 10
of 1 071
pro vyhledávání: '"Transformation temperature"'
Autor:
Haosen Yuan, Wenbin Zhao, Hangyuan Zhang, Zhihang Fan, Xiaohua Tian, Kun Zhang, Changlong Tan
Publikováno v:
Journal of Materials Research and Technology, Vol 30, Iss , Pp 9592-9600 (2024)
The discovery of the Mg–Sc shape memory alloy system has become a milestone in the development of lightweight shape memory alloys. However, for the application scenarios with the highest demand at room temperature, the Mg–Sc alloy faces problems
Externí odkaz:
https://doaj.org/article/f3ec1acc57ac46518f5210ae256b9ab1
Publikováno v:
Journal of Materials Research and Technology, Vol 30, Iss , Pp 4527-4541 (2024)
This paper examines the effect of ageing temperatures (400, 500, & 600 °C) and times (30, 60, & 90 min) on Ni-rich NiTi samples produced via the Laser Powder Bed Fusion (L-PBF) technique. Variations in the process parameters of the L-PBF which were
Externí odkaz:
https://doaj.org/article/246cdc093f30481592937c5a87a8ff79
Autor:
Neha Agarwal, Medad C.C. Monu, Karthikeyan Tamil Selvam, Muhannad Ahmed Obeidi, Dermot Brabazon
Publikováno v:
Journal of Materials Research and Technology, Vol 27, Iss , Pp 8334-8343 (2023)
This study examined the effect of variations in the laser power and scan speed for 52.39 at.%Ni-47.61 at.%Ti samples produced via laser powder bed fusion (L-PBF). The laser power was varied between 150W and 180 W, the scanning speeds were varied betw
Externí odkaz:
https://doaj.org/article/80fcaef7893e4320bdc6b9d616c50e0d
Publikováno v:
Journal of Materials Research and Technology, Vol 26, Iss , Pp 990-998 (2023)
In the present work, the effects of Nb addition and aging on the microstructure evolution and martensitic transformation of (Ni50.3Ti28.7Hf20.0Sc1.0)100-xNbx (x = 0, 5, 10, 15 at.%) high temperature shape memory alloys were investigated. The addition
Externí odkaz:
https://doaj.org/article/d719656293b1452eb79037ec4816fe5e
Autor:
Dezső L. Beke, Asmaa A. Azim
Publikováno v:
Materials, Vol 17, Iss 16, p 4116 (2024)
General derivation of the well-known Ren–Otsuka relationship, 1αdTodx=−αβ (where To, x, α and β(>0) are the transformation temperature and composition, as well as the composition and temperature coefficient of the critical shear constant, c
Externí odkaz:
https://doaj.org/article/16072ea0cc6f47fc9dae95973d5b3ce5
Publikováno v:
He jishu, Vol 47, Iss 6, Pp 060503-060503 (2024)
BackgroundLaser cladding, recognized for its cost-effectiveness and high efficiency, has become a focal point in the field of laser remanufacturing. GX4CrNi13-4 martensitic stainless steel produced by laser cladding is a widely used structural materi
Externí odkaz:
https://doaj.org/article/1d317d4628fa464c9556fc1e32f2c97f
Publikováno v:
工程科学学报, Vol 45, Iss 6, Pp 907-914 (2023)
The composite oxides of Ti and Zr can effectively induce acicular ferrite nucleation and refine austenite grain size. To study the transformation mechanism of acicular ferrite in Ti–Zr treated steel, the mass fraction of 0.038% titanium and 0.008%
Externí odkaz:
https://doaj.org/article/e3bcc57b809f48fd80403586cd61cce4
Publikováno v:
Journal of Manufacturing and Materials Processing, Vol 8, Iss 2, p 50 (2024)
In this study, the evolution of volume fractions during laser beam welding (LBW) of stainless steel, with a specific focus on incorporating the low transformation temperature (LTT) effect using the dilatometer, has been proposed. The LTT effect refer
Externí odkaz:
https://doaj.org/article/b676a96ee4e64acab2280e8a24f6c49a
Publikováno v:
Engineering and Technology Journal, Vol 40, Iss 12, Pp 1712-1722 (2022)
SMAs can switch from one crystallographic structure to another in response to temperature or stress stimuli. When SMAs are exposed to mechanical cyclic stress, they can absorb and discharge mechanical energy by experiencing a reversible hysteretic sh
Externí odkaz:
https://doaj.org/article/902d0c27e7ea4d6fa98ee92424278769
Publikováno v:
Materials, Vol 17, Iss 5, p 1117 (2024)
The phase transformation temperature plays an important role in the design, production and heat treatment process of steels. In the present work, an improved version of the gradient-boosting method LightGBM has been utilized to study the influencing
Externí odkaz:
https://doaj.org/article/4c2b2db1cfdc48a182ac54504f1b7fa7