Results 11 to 20 of about 110,583 (215)

Thermal cycling induced stress–assisted sigma phase formation in super duplex stainless steel

open access: yesMaterials & Design, 2019
Thermal cycling induced the phase transformation originated from the physical simulation of power plant on/off operation. The effect of thermal cycling on duplex stainless steel was studied to understand its phase transformation comprehensively.
Jian-Sin Li   +7 more
doaj   +1 more source

The roles of Ce and Mn on solidification behaviors and mechanical properties of 7Mo super austenitic stainless steel

open access: yesJournal of Materials Research and Technology, 2023
Effect of Ce and Mn on solidification behaviors and mechanical properties of 7Mo super austenitic stainless steel was investigated via in-situ observations, thermodynamic calculations and microstructural characterization.
Runze Zhang   +4 more
doaj   +1 more source

Effect of annealing temperature on the structure and properties of FeCoCrNiMo high-entropy alloy

open access: yesHigh Temperature Materials and Processes, 2022
FeCoCrNiMo high-entropy alloy was melted by vacuum arc melting. The alloys were vacuum annealed at 873, 1,073, and 1,273 K, respectively. X-ray diffractometer (XRD), scanning electron microscope (SEM), simultaneous thermal analyzer, microhardness tester,
Sheng Lei   +5 more
doaj   +1 more source

Influence of B addition on the Mo diffusion-controlled eutectic dissolution process during homogenization of super austenitic stainless steel S31254

open access: yesJournal of Materials Research and Technology, 2023
The influence of B addition on dissolution behavior of (σ + γ)e eutectics of a 6Mo super austenitic stainless steel S31254 during the homogenization process was investigated by SEM-BSE observations combined with EDS.
Huanyu Tan   +6 more
doaj   +1 more source

Effect of Aging treatment on the Evolution of Precipitates in Super Duplex Stainless Steel [PDF]

open access: yesTeshugang
The precipitation behavior of precipitates in S32750 super duplex stainless steel was studied by aging treatment at 850 ℃. Thermo-Calc software was used to predict the precipitates and phase composition in tested steel.
Luo Renzhi   +5 more
doaj   +2 more sources

Influence Factors on σ-Phase Precipitation of FeCr16 Corrosion-resistant Soft Magnetic Alloy [PDF]

open access: yesTeshugang
In order to investigate the influencing factors of the precipitation of σ phase in the solidification structure of FeCr16 corrosion-resistant soft magnetic alloy during electroslag remelting process, a series testes has been conducted to study the ...
Zhu Yincun, Song Changjiang, Tian Yuxin
doaj   +3 more sources

Suppressing σ phase formation by rapid solidification to prevent embrittlement in a low-cost aged medium-entropy alloy

open access: yesJournal of Materials Research and Technology, 2023
Developing cost-effective high- and medium-entropy alloys (HEAs/MEAs) is essential to promote their broad industrial applications. A newly developed low-cost Fe45Cr25Ni10Mn15Al4C1 (at.%) MEA shows excellent compressive strength and ductility, but it is ...
M.Z. Cao, Y. Zuo, B.B. He, Z.Y. Liang
doaj   +1 more source

Temperature-Dependent Sigma (σ) Phase Evolution and Transformation Kinetics in 24Cr–14Ni Stainless Steel Aged at 700–1000 °C

open access: yesMetals
This study investigated the temperature-dependent σ phase transformation behavior of 24Cr–14Ni stainless steel subjected to aging at 700–1000 °C for 1–8 h. At 700 °C, the σ phase mainly retained the original dendritic morphology, whereas at 800 °C, the δ
Chih-Chun Hsieh
doaj   +1 more source

Effect of Al Content on Phase Compositions of FeNiCoCrMo0.5Alx High Entropy Alloy

open access: yesMetals, 2021
The FeCoNiCrMo0.5Alx system with x up to 2.13 was analyzed from the point of view of evolution of the phase composition and microstructure. Cast samples were synthesized by induction melting and analyzed by X-ray diffraction, energy dispersive ...
Anton Semikolenov   +6 more
doaj   +1 more source

Phase Transformation of δ→σ in 24Cr-14Ni Stainless Steels Under Nitrogen Atmospheric Aging Treatment

open access: yesMetals
This work investigates the δ→σ phase transformation in 24Cr-14Ni stainless steel, specifically focusing on how heat treatment temperature, time, and nitrogen atmospheric ratios (NARs) dictate microstructural stability.
Chih-Chun Hsieh, Huei-Sen Wang
doaj   +1 more source

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