A combination of droplet solidification tester and confocal laser scanning microscope was used to simulate subrapid solidification and secondary cooling process pertinent to the strip casting. The IF steel droplet had a delamination structure and the bottom part went through sub-rapid solidification. During secondary cooling, γ/α transformation mechanism belonged to interface-controlled massive transformation and the ferrite grains grew quickly. With the increase of cooling rate, the γ/α transformation temperature decreased and the incubation period and phase transformation duration reduced. The hardness showed a slight increase due to fine-grain strengthening. With coiling temperature increasing from 600 °C to 800 °C, the grain size became larger, precipitates became coarse, and defects in grain were recovered. Consequently, the hardness decreased.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8472821 | PMC |
| http://dx.doi.org/10.3390/ma14185274 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Dry solidification of chloride salts and heavy metals in waste incineration fly ash by mayenite.
Waste Manag
December 2024
Jiangsu Key Laboratory of E-waste Recycling, School of Resources and Environmental Engineering, Jiangsu University of Technology, Changzhou 213001, PR China. Electronic address:
There are hazardous substances such as chloride salts and heavy metals in the municipal solid waste incineration fly ash (WIFA). During thermal treatment, the concentrated chlorides promote the volatilization of heavy metals, increasing the ecological risk. The water washing method is also employed as a pre-treatment for WIFA, but a substantial volume of wastewater with high chloride content is produced that poses challenges for effective treatment.
View Article and Find Full Text PDFMutability of Nucleation Particles in Reactive Salt Hydrate Phase Change Materials.
J Phys Chem C Nanomater Interfaces
October 2024
Department of Materials Science and Engineering, Texas A&M University, College Station, Texas 77843, United States.
Nucleation particles, solid phases dispersed throughout a medium to decrease the energy barrier for solidification or other reversible phase transitions, are generally selected on the basis of structural or interfacial energy considerations between the host phase and the solid phase that is crystallizing. However, the existence of chemical reactions between the nucleation particles and the host phase can obscure these underlying relationships, thereby complicating the process of selection of active nucleation particle phases. Here, we reveal the origin of nucleation activity of barium-based nucleation particles in the salt hydrate calcium chloride hexahydrate (CCH), a candidate for near room temperature thermal energy storage.
View Article and Find Full Text PDFGiant Elastocaloric Effect and Improved Cyclic Stability in a Directionally Solidified (NiMnTi)B Alloy.
Materials (Basel)
September 2024
Key Laboratory for Anisotropy and Texture of Materials (Ministry of Education), School of Materials Science and Engineering, Northeastern University, Shenyang 110819, China.
Superelastic shape memory alloys with an integration of large elastocaloric response and good cyclability are crucially demanded for the advancement of solid-state elastocaloric cooling technology. In this study, we demonstrate a giant elastocaloric effect with improved cyclic stability in a <001> textured polycrystalline (NiMnTi)B alloy developed through directional solidification. It is shown that large adiabatic temperature variation (|Δ|) values more than 15 K are obtained across the temperature range from 283 K to 373 K.
View Article and Find Full Text PDFHighly efficient CO mineralization: Mechanisms and feasibility of utilizing electrolytic manganese residue as a feedstock and implementing ammonia recycling.
Sci Total Environ
December 2024
College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, Hunan, PR China; Hunan Provincial Key Laboratory of Efficient and Clean Utilization of Manganese Resources, Central South University, Changsha 410083, PR China. Electronic address:
Electrolytic manganese residue (EMR) and CO emissions from the electrolytic manganese metal (EMM) production process present significant challenges to achieving cleaner production within the industry. Given the high capacity for CO sequestration and the stability of the sequestered forms, CO mineralization methods utilizing minerals or industrial residues have garnered considerable research interest. The efficacy of such methods is fundamentally dependent on the properties of the materials employed.
View Article and Find Full Text PDFThe erosion of large primary atmospheres typically leaves behind substantial secondary atmospheres on temperate rocky planets.
Nat Commun
September 2024
Department of Astronomy and Astrophysics, University of California, Santa Cruz, Santa Cruz, CA, 95064, USA.
Exoplanet exploration has revealed that many-perhaps most-terrestrial exoplanets formed with substantial H-rich envelopes, seemingly in contrast to solar system terrestrials, for which there is scant evidence of long-lived primary atmospheres. It is not known how a long-lived primary atmosphere might affect the subsequent habitability prospects of terrestrial exoplanets. Here, we present a new, self-consistent evolutionary model of the transition from primary to secondary atmospheres.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!