A combined effect of purification and yttrium (Y) addition was investigated to improve impact properties of high-chromium V-xCr-4Ti alloys. Tensile tests and Charpy impact tests were carried out by using miniaturized specimens. V-10Cr-4Ti-0.15Y alloy had ultimate tensile stress (UTS) at 700 oC and yield stress (YS) approximately equal to and higher than those of V-4Cr-4Ti alloy, respectively. V...

Two TaC-strengthened cobalt-based alloys, with compositions Co-10Cr-0.25C-4.4Ta and Co-10Cr-0.5C-8.7Ta (wt.%) underwent Cr-deposition by pack-cementation, followed by heat-treatment to allow Cr diffusing deeper in their sub-surface. Thereafter they were tested for 50 hours at 1200°C in a thermobalance. These alloys were successfully enriched in chromium, with a maximal content on surface of abo...

lOCr stainless steel has been employed to examine the effect of nitrogen on microstructure and strength. Applying Solid state gaseous nitrogenising treatments a whole range of nitrogen martensite structures containing up to 0.45 wt% were obtained. It was found that a linear relationship exists between strength and nitrogen content in precipitate free martensitic structures. Yield strength incre...

The iron-based Fe–17Mn–5Si–10Cr–4Ni shape memory alloy (SMA) has been manufactured by laser powder bed fusion (LPBF) for the first time. High strength, elongation and ductility are observed after annealing. In addition, pronounced effect (SME) pseudo-elasticity (PE), which exceed those measured conventionally fabricated Fe–17Mn–5Si–10Cr–4Ni-1(V,C) containing VC precipitates, achieved. texture g...

kin17 has been described as a protein involved in the processes of DNA replication initiation, DNA recombination, and DNA repair. kin17 has been studied as a potential molecular marker of breast cancer. This work reports the detection and localization of this protein in the murine melanoma cell line B16F10-Nex2 and in two derived subclones with different metastatic potential, B16-8HR and B16-10...

The development of generation IV nuclear reactor requires improvements in structural and cladding materials. Oxide dispersion strengthened (ODS) steels are promising candidates because improved creep properties. Two main families ODS known, the first one is martensitic steel with a full reverse ferrite to austenite phase transformation at high temperatures. second ferritic matrix whatever tempe...

Structural changes during the deformation-induced synthesis of nanocrystalline Fe-10Cr-3Al alloy powder via high-energy ball milling followed by annealing and rapid consolidation by spark plasma sintering were investigated. Reduction in crystallite size was observed during the synthesis, which was associated with the lattice expansion and rise in dislocation density, reflecting the generation o...

Two new ferrito-martensitic oxide dispersion strengthened (ODS) steels reinforced with (Y, Ti, O) nanoparticles were elaborated using a high-energy attritor. The milled powder was consolidated by hot extrusion at 1050 °C. two types of ODS differ chromium content, 10 wt% Cr and 12 respectively. According to thermodynamic calculations, those grades are supposed exhibit an austenitic transformatio...