Results 11 to 20 of about 3,121,151 (264)

Order of the Chiral Phase Transition in the σ Models [PDF]

open access: yesMomento, 2005
The chiral phase transition at a certain critical temperature is a restoration mechanism of the chiral symmetry, broken by the nonzero mass of quarks and mesons. The transition can be studied through several models, among which are the σ models.
F. A. Correa, J. Morales
doaj   +1 more source

Dependence of intergranular precipitation on grain boundary characteristics in Ni–Cr–Fe–Mo–Cu alloy

open access: yesJournal of Materials Research and Technology, 2023
Hastelloy G30 is a typical representative of Ni–Cr–Fe–Mo–Cu alloys, which have excellent corrosion resistance and mechanical properties. High alloying-element content induces a risk of intermetallic precipitation, which is poorly eliminated in steel ...
Zhenhua Wang, Kewei Deng, Bingyang Ma
doaj   +1 more source

Influence of isochronal treatments on microstructure and mechanical properties of solution treated UNS S32750 SDSS alloy specimens

open access: yesJournal of Materials Research and Technology, 2020
In this study, the influence of isochronal treatments performed at temperatures between 700 °C and 1060 °C and, with a treatment duration of 15 min, on microstructure and mechanical properties of a solution treated UNS S32750 Super Duplex Stainless Steel
Elisabeta Mirela Cojocaru   +5 more
doaj   +1 more source

Study of Interface-Related Mechanisms in the Early Stage Precipitation of σ Phase in Hyper Duplex Stainless Steels

open access: yes, 2023
This work aims to computationally explore the diffuse prerequisites for σ phase precipitation in high-alloyed duplex steels. The diffusion control for the early precipitation stage of the σ phase was studied by the Calphad thermodynamic modeling combined
Povoden-Karadeniz, Erwin; orcid:   +4 more
core   +1 more source

The precipitation behavior and its effect on mechanical properties of cold-rolled super-ferritic stainless steels during high-temperature annealing

open access: yesJournal of Materials Research and Technology, 2021
The precipitation behavior, microstructure evolution and mechanical properties of a cold-rolled 27.6Cr–3.7Mo–2Ni ferritic stainless steel during high temperature annealing treatment were investigated.
Hui-Hu Lu   +3 more
doaj   +1 more source

Effects of Al additions on precipitation, recrystallization and mechanical properties of hot-rolled ultra-super ferritic stainless steels

open access: yesJournal of Materials Research and Technology, 2023
In this study, 1.0 wt%Al element was added into the traditional 26.8Cr-3.7Mo–2Ni super-ferritic stainless steel to tailor the brittle phase precipitation, recrystallization microstructure and mechanical property via solution annealing at temperatures of ...
Ling-Yun Du   +5 more
doaj   +1 more source

Effects of High Temperature Aging Treatment on the Microstructure and Impact Toughness of Z2CND18-12N Austenitic Stainless Steel

open access: yesMetals, 2020
During the casting cooling process or the forging process, austenitic stainless steel will remain at around 800 °C for some time. During this period, precipitate particle behaviors in austenitic stainless steel (containing ferrite) will cause a reduction
Hui Zhang   +3 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

σ-Phase Formation in Super Austenitic Stainless Steel During Directional Solidification and Subsequent Phase Transformations [PDF]

open access: yes, 2020
The solidification path and the σ-phase precipitation mechanism in the S31254 (UNS designation) steel are investigated thanks to Quenching during Directional Solidification (QDS) experiments accompanied by scanning electron microscopy observations and ...
Rouat, Bernard   +15 more
core   +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

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