Results 21 to 30 of about 2,333 (165)

Evolution of microsegregation-induced precipitations and bending fracture mechanisms of 9% Ni steel weldments filled with nickel-based alloys

Journal of Materials Research and Technology, 2023
A combined experimental/modeling approach had been performed to investigate the evolution of microsegregation-induced precipitates and its effects on the crack initiation and propagation behavior of 9% Ni steel weldments filled with different kinds of ...
Haodong Peng, Xiuguo Liu, Caiyan Deng, Shipin Wu, Qiang Li, Li Ma   +5 more
doaj   +1 more source

Effect of Al addition on Nb-rich phase precipitation behavior in ferritic stainless steel

Journal of Materials Research and Technology
The precipitation behavior of Nb-rich phase in Al-free and 1Al Nb-bearing ferritic stainless steels (FSSs) at 700 °C were investigated. The results show that Nb-bearing carbides and Laves phases with mutual transformation relationships are precipitated ...
Mingkun Jiang, Ying Han, Guoqing Zu, Weiwei Zhu, You Yang, Xu Ran   +5 more
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Synergistic effect of Nb and Ta alloying on microstructure and mechanical properties of CoCrFeNi high-entropy alloy

Cailiao gongcheng
CoCrFeNi-(Nb, Ta) high-entropy alloys (HEAs) were prepared by a vacuum arc melting process, and the synergistic effect of Nb and Ta concentrations on the microstructure evolution and mechanical properties was investigated in detail.
ZHU Zhe, SHI Zengmin, YE Xicong, WANG Kesheng, LEI Haofeng, DENG-LI Chengui, LI Guangyu, DAI Lei   +7 more
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Study on creep behavior and microstructure of a Fe–Cr–Al–Nb–W ferrtic heat-resistant steel based on C, N and Al element control

Materials Research Express, 2020
In this work, the effects of C, N, and Al on the microstructures and creep properties of Fe–Cr–Al–Nb–W ferritic alloys were investigated through scanning electron microscopy, x-ray diffractometry, as well as uniaxial creep testing and hardness testing ...
Shanjun Zhang, Junjie Shen, Hui Kang, Fuyong Hu   +3 more
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Effect of Alloying on the Nucleation and Growth of Laves Phase in the 9–10%Cr-3%Co Martensitic Steels during Creep

Metals, 2020
Five Co-modified P92-type steels with different contents of Cr, W, Mo, B, N, and Re have been examined to evaluate the effect of the chemical composition on the evolution of Laves phase during creep at 650 °C. The creep tests have been carried out at 650
Alexandra Fedoseeva, Ivan Nikitin, Evgeniy Tkachev, Roman Mishnev, Nadezhda Dudova, Rustam Kaibyshev   +5 more
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Laves phases in Mg-Al-Ca alloys and their effect on mechanical properties

Materials & Design, 2023
Mg-Al-Ca alloys with Laves phase reinforcement are suitable for structural applications. The composition, crystal structure, and distribution of Laves phases can be tuned by the alloy composition and heat treatment, which subsequently influence their ...
Muhammad Zubair, Markus Felten, Bengt Hallstedt, Miquel Vega Paredes, Lamya Abdellaoui, Ruben Bueno Villoro, Marta Lipinska-Chwalek, Nadia Ayeb, Hauke Springer, Joachim Mayer, Benjamin Berkels, Daniela Zander, Sandra Korte-Kerzel, Christina Scheu, Siyuan Zhang   +14 more
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Similarity between Effects of Laves Phase and M6C in Alloy Steels

Communications, 2009
The aim of this work is to summarize the experimental result obtained within the last two decades about the effects of Laves phase and M6C during long-term thermal exposures of alloy steels.
Jozef Janovec
doaj   +1 more source

Grain refinement and Laves phase dispersion by high-intensity ultrasonic vibration in laser cladding of Inconel 718

Journal of Materials Research and Technology
Laser cladding is a promising surface modification and repair technology for fabricating Inconel 718 parts. However, laser cladding may produce coarse grains and brittle Laves phase, leading to a significant decrease in performance.
Jian Chen, Zhehe Yao, Fabo Wang, Yiming Chi, Zhen Wang, Szymon Tofil, Jianhua Yao   +6 more
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Annealing treatment for improving the mechanical properties of 00Cr18Nb ferritic stainless steel prepared by investment casting

Materials Research Express, 2021
The as-cast and annealed mechanical properties of 00Cr18Nb ferritic stainless steel prepared by investment casting process were studied. Experimental results indicated that the problem of unstable plastic fluctuations in the as-cast state can be ...
Yu-Kun Hu, Wei-Min Mao
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Improving the strength-ductility synergy and corrosion resistance of Inconel 718/316L dissimilar laser beam welding joint via post-weld heat treatment

Journal of Materials Research and Technology, 2023
Inconel 718/316L dissimilar welding is widely used in nuclear power plants, which suffers from the deterioration of mechanical properties and corrosion resistance after welding, attributed to the formation of brittle phase and the existence of residual ...
Dan Zhao, Fei Liu, Yuan-Biao Tan, Wei Shi, Song Xiang   +4 more
doaj   +1 more source