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Article
Improving creep strength of the fine-grained heat-affected zone of novel 9Cr martensitic heat-resistant steel via modified thermo-mechanical treatment
The infamous type IV failure within the fine-grained heat-affected zone (FGHAZ) in G115 steel weldments seriously threatens the safe operation of ultra-supercritical (USC) power plants. In this work, the tradi...
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Article
Improvement of Mechanical Properties of G115 Steel Welded Joint by Adjusting Welding Current
G115 martensitic heat-resistant steel has been widely used in high parameter thermal power units because of its excellent mechanical properties and oxidation resistance. The microstructure and mechanical prope...
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Article
Cancer Stem Cells and the Tumor Microenvironment in Tumor Drug Resistance
Although there has been some progress in the efficacy of anti-cancer drugs, drug resistance remains challenging. Cancer stem cells (CSCs) are self-renewing and differentiate into cancer tissues with tumor hete...
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Article
Microstructure and Mechanical Property of Copper–Steel Dissimilar Friction Stir Weld Fabricated by Presetting an Integrated Aluminum Barrier Layer
The conventional friction stir welding (FSW) of dissimilar materials with high melting points, such as copper and steel, is prone to involve harmful intermetallic compounds (IMCs), large welding forces and the...
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Article
Gastric cancer mesenchymal stem cells via the CXCR2/HK2/PD-L1 pathway mediate immunosuppression
Anti-PD-1 immunotherapy has emerged as an important therapeutic modality in advanced gastric cancer (GC). However, drug resistance frequently develops, limiting its effectiveness.
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Article
Precipitation and Strengthening Behavior of M23C6 Carbides in Tempered G115 Steel
High-Cr martensitic heat-resistant steel has been widely used in high-parameter thermal power units because of its excellent mechanical properties and oxidation resistance. Microstructure evolution and mechani...
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Article
Strengthening and fracture mechanisms of Fe–20Ni–14Cr–2Cu alumina-forming austenitic steel during cree**
The strengthening and fracture mechanisms of Fe–20Ni–14Cr–2Cu alumina-forming austenitic (AFA) steel during cree** at 973 K/130 MPa were systematically investigated. Microstructural observations show that du...
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Article
Heterogeneous microstructural characteristics of aluminum-addition friction stir-processed Al0.1CoCrFeNi alloy with strength–ductility synergy
The strength–ductility trade-off is evident for AlxCoCrFeNi high-entropy alloy (HEA), and the synergistic improvement of its strength and ductility has always been a challenging topic. Based on the limitations of...
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Article
Effect of Heat Treatment Temperature on Microstructure and Properties of FeCoNiCuTi High–Entropy Alloy
In the present work, FeCoNiCuTi high-entropy alloy (HEA) was heat-treated at different temperatures. After heat treatment at different temperatures, the crystal structure maintained its FCC + Laves phase struc...
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Article
Effect of Annealing on Precipitation Hardening Behavior of 4% Al Austenitic Steel During Creep
Austenitic steel AFA alloyed with 4% Al is studied in the state as delivered and after annealing at 1050 and 1230°C. The chemical composition of the steel is determined, the microstructure is analyzed, and the...
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Article
Microstructure, mechanical properties and magnetic properties of FeCoNiCuTiSix high-entropy alloys
The microstructure, mechanical properties and magnetic properties of FeCoNiCuTiSix (x=0, 0.05, 0.1, 0.2, 0.4 and 0.5) high-entropy alloys were studied in detail in the present paper. The crystal structure changes...
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Article
Hot deformation of alumina-forming austenitic steel: EBSD study and flow behavior
The flow behavior of alumina-forming austenitic steel was studied using axisymmetric hot compression on a Gleeble-3500 thermomechanical simulator. The temperature range was 900–1200 °C, and strain rate range w...
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Article
Anisotropy and microstructural evolutions of X70 pipeline steel during tensile deformation
Tensile properties of different directions of X70 pipeline steel plate were tested, and microstructural evolutions of different zones along the transverse direction (TD) were also investigated using electron b...
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Article
Open AccessPrecipitates and Particles Coarsening of 9Cr–1.7W–0.4Mo–Co Ferritic Heat-Resistant Steel after Isothermal Aging
The precipitates obtained by EPE technology from the 9Cr-1.7W-0.4Mo-Co ferritic heat-resistant steel subject to isothermal aging were investigated using SEM, TEM and XRD. The particle size distribution and the...
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Article
Microstructures of As-cast and Homogenized Hypereutectic Nb62Ti16Ni22 Alloy
The microstructures of hypereutectic Nb62Ti16Ni22 alloy after subjecting as-cast and homogenizing treatment were investigated in detail by X-ray diffraction (XRD), optical microscopy (OM) and scanning electron mi...
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Article
Erratum to: Austenite grain growth in alumina-forming austenitic steel — Corrigendum
In the original publication of “Austenite grain growth in alumina-forming austenitic steel,” the legends for the optical micrographs were missing for Fig. 2 and Fig. 3(a-h). The following are the corrected fig...
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Article
Austenite grain growth in alumina-forming austenitic steel
Microstructures and austenite grain growth behavior of the alumina-forming austenitic (AFA) steel subjected to normalizing and annealing at various temperatures were investigated. A modified kinetic model of a...
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Article
Non-isothermal austenitic transformation kinetics in Fe–10Cr–1Co alloy
Differential thermal analysis (DTA) has been employed to study the kinetics of the matensite ( \(\alpha^{'}\) ...
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Article
Martensite transformation in the modified high Cr ferritic heat-resistant steel during continuous cooling
The thermal dilation experiment and the martensite transformation features of modified high Cr ferritic heat-resistant steel upon continuous cooling were explored at various cooling rates. The “spread” martens...
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Article
The isochronal δ → γ transformation of high Cr ferritic heat-resistant steel during cooling
Thermal simulation technology was employed to investigate phase transformation in heat-affected zones (HAZ) of high Cr ferritic heat-resistant steel. The simulated continuous cooling transformation diagram was...
