15.609 hasil
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Journal of Materials Research and Technology
Scopus
ISSN 2238-7854 · Elsevier · 15.609 artikel di indeks
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Artikel Jurnal
Impact of stress distribution between delta ferrite and austenite on the strain-induced martensite in AISI 304 steel
This study reports the influence of the fraction of δ ferrite in the austenitic stainless steel AISI 304 on strain hardening during a uniaxial tensile test. Two different steels of altered chemistry and the corresponding fractions of δ ferrite (0.5 and 7.25 wt %) were investigated at different…
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Artikel Jurnal
Research on thermal degradation and tensile properties of carbon fiber reinforced epoxy resin composites at elevated temperatures
Carbon fiber reinforced epoxy resin composites (CFRCs) are widely used in the manufacture of high-pressure hydrogen storage cylinders. However, under accidental fire, these composite cylinders have a high failure risk since the elevated temperatures significantly degrade their structural integrity…
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Artikel Jurnal
Porous AlPO4 ceramic with high strength and good acoustic performance prepared by direct foaming and gel-casting
Acoustic stealth of underwater vehicles demands sound insulation and decoupling materials (SIDM) with good acoustic performance, high strength, and relatively low acoustic impedance. To address this, low elastic modulus AlPO4 was selected as the backbone material and porous AlPO4 ceramics were…
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Artikel Jurnal
Process-parameter-dependent defects formation mechanisms in laser powder bed fusion of non-weldable nickel-based superalloy
High Al and Ti content nickel-based superalloys with excellent performance are limited by cracking defects, and cannot be effectively applied in additive manufacturing (AM), which are referred to as non-weldable superalloys. Laser powder bed fusion (LPBF) was applied to manufacture non-weldable…
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Artikel Jurnal
Reverted austenite formation in a cryorolled lean duplex stainless steel
Strain-induced martensite formation and α′-martensite to austenite reversion (α’ → γ) were investigated in a cryorolled UNS S32304 lean duplex steel. The material was rolled at 77 K up to 50 % thickness reduction and annealed up to 800 °C for 1 h. The microstructural evolution of the steel, with…
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Artikel Jurnal
Tailoring ceramic particle size and fraction to optimize aluminum powders for additive manufacturing
The use of ceramic nanoparticles as inoculants can promote equiaxed microstructures and reduce solidification cracking during Laser Powder Bed Fusion (L-PBF) of high-strength aluminum alloys. However, concerns about particle agglomeration and health risks have shifted interest toward larger…
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Artikel Jurnal
Study on microstructure and properties of super martensitic stainless steel fabricated by hot wire laser additive manufacturing
To address the deposition efficiency and heat input limitations of cold wire-laser metal deposition (CW-LMD), this study investigates the hot wire-laser metal deposition (HW-LMD) of super martensitic stainless steel (SMSS). A comparative analysis of microstructure and mechanical properties reveals…
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Artikel Jurnal
Fabrication and microstructure of Cu(Al)-diamond composites reinforced with Cr3C2 and Al2O3 synthesized in-situ
Cu-diamond composites (CDCS) possess great potential in thermal management materials. However, they face critical scientific challenges, including weak interfacial bonding and poor high-temperature performance of the Cu matrix. To improve the bonding at the Cu-diamond interface and to construct a…
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Artikel Jurnal
Synergistic enhancement of strength and ductility in TRIP lean duplex stainless steel through cyclic pre-deformation
In this study, a transformation-induced plasticity (TRIP) lean duplex stainless steel (LDSS) was strengthened by cyclic plastic deformation with small strain amplitudes (εa). This methodology effectively enhances both the strength and elongation of the TRIP LDSS. After the cyclic pre-deformation…
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Artikel Jurnal
Optimizing tribological properties of CrAlN coatings via Y doping over wide temperature range
This study utilized high-throughput arc ion plating to deposit CrAlYN coatings (with 0.1–1.6 at. % Y) onto GH4169 substrates. The role of Y in regulating the tribological behavior of the coatings was systematically investigated across a temperature range of 25–800 °C. When Y content is 0.1 at. %…
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Artikel Jurnal
Dry sliding wear behavior of laser powder bed fusion processed Inconel 718 alloy
With the increasing adoption of laser powder bed fusion (LPBF) for fabricating Inconel 718 alloys, growing attention has been directed toward evaluating their operational performance, particularly in relation to mechanical properties, fatigue behavior, and tribological characteristics. In the…
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Artikel Jurnal
Unveiling the anomalous enhancement mechanism and the role of tensile twin in DRX of hot-compressed Mg-RE alloys at high strain rates
High-strain-rates typically inhibit dynamic recrystallization (DRX) nucleation, which restricts grain refinement in Mg alloys during hot deformation. In this study, however, an anomalous increase in DRX volume fraction (from 9.5 % to 32.9 %) is observed in a Mg-7.5Gd-1Y-2Nd-0.4Zr (wt.%) alloy as…
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Artikel Jurnal
A novel methodology to describe the impact of conduction transporting via a deficient interphase on the conductivity of carbon nanofiber composites
A deficient interphase is considered to express the percolation threshold (ϕp) and conductivity for carbon nanofiber (CNF)-filled composite (PCNF) using a modeling approach. In this context, Y represents the extent of conduction transfer via a deficient interphase in the PCNF and is expressed using…
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Artikel Jurnal
Effect of nickel-coated diamond on the thermal conductivity of copper matrix composites
This study employed electroless plating to deposit a nickel coating onto the diamond surface. Composite powder was prepared via ball milling, followed by the fabrication of diamond/copper composites using rapid hot pressing. The effects of diamond content and the nickel coating on the…
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Artikel Jurnal
Effect of Al addition on solidification microstructure and mechanical properties of flame-retardant Mg-5Ca-1.5Sm alloy
This study investigates the influence of 1–4 wt% Al additions on the microstructure of a flame-retardant Mg-5Ca-1.5Sm alloy, revealing a distinct threshold effect of Al on grain refinement. With 1–2 wt% Al, the Al2Sm phase forms but fails to refine the grains significantly. In contrast, 3 wt% Al…
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Artikel Jurnal
Fabrication and machining of the SiCf/SiC ceramic matrix composites: a review
SiCf/SiC composites exhibit exceptional high-temperature performance, making them ideal candidates for hot-end components in aerospace, nuclear energy, and other advanced industrial applications. However, the intrinsic brittleness of SiC induces cracks, while the anisotropic nature of SiCf/SiC…
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Artikel Jurnal
Sustainable processing of recycled aluminium alloy hybrid composites with Si3N4 and MoS2 reinforcements for lightweight applications
The growing need for lightweight, high-performance materials has intensified the focus on recycling aluminium alloys from industrial scrap. Nevertheless, obtaining sufficient mechanical and corrosion characteristics from recycled alloys continues to pose a significant challenge. This study involved…
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Artikel Jurnal
Samarium and Yttrium co-doped synergistically improve corrosion resistance and mechanical properties of AZ61 alloy
The microstructure, corrosion resistance and mechanical properties of AZ61-0.5Y-xSm (x = 0, 1, 2, 3, 4, 5 wt%) alloy were systematically investigated with the addition of Samarium (Sm) and Yttrium (Y) as alloying elements. The results indicate that as the Sm content increases, the β-Mg17Al12 phase…
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Artikel Jurnal
Investigation of microstructure and texture evolution of nickel-saving duplex stainless steels containing Y
Microstructures and textures of nickel-saving duplex stainless steels (DSSs) containing Y were investigated. In this investigation, increasing annealing temperature (1000–1100 °C) had a significant impact on the level of two-phase structure, causing an increase in the ferrite phase and a decrease…
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Artikel Jurnal
Divergent grain boundary oxidation mechanisms in Inconel 718 with pre-tensile and pre-compressive strain state by bending
Thermo-mechanical coupling during service induces distinct oxidation behavior in Inconel 718 superalloys. This study systematically examines the oxidation response under pre-tension and pre-compression strains, focusing on microstructural evolution and stress-type-dependent mechanisms. Results…
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