OpenAccess

In order to reduce CO2 emissions, the steel industry shifts its production towardthe usage of higher scrap contents. This transformation leads to an elevation oftramp element concentrations, which can alter the steel’s response during heattreatments. [...]

Magnesium (Mg) alloys typically exhibit anisotropic mechanical behaviors due to their hexagonal close-packed (hcp) crystal structures,often leading to tension-compression asymmetries. Understanding of the asymmetrical and related deformation mechanisms is crucial fortheir structural applications, particularly in the lightweight transportation industries. [...]

Friction consolidation (FC) was deployed to illustrate the mechanical alloying effect of Al-Cu, Al-Li, and pure Cupowder through phase transformation behavior. A progressive material flow from the periphery to the center ofthe FC die was witnessed, along with expansion perpendicular to the direction of rotation, indicating variousdegrees of alloying. [...]

Ni-based superalloys fabricated by arc-based directed energy deposition (DED) typically exhibit a non-optimizedmicrostructure, characterized by coarse and oriented columnar grains, which limits their performance and in-dustrial applications. In this context, microstructure refinement techniques previously applied to arc-basedwelding have been tested in additive manufacturing, highlighting interlayer mechanical deformation methods(e.g., rolling and peening). [...]

Electromagnetic corrections to hadronic vacuum polarization contribute significantly to the uncertainty of the Standard Model prediction of the muon anomaly, which poses conceptual and numerical challenges for ab initio lattice determinations. In this study, we compute the non-singlet contribution from intermediate Euclidean current separations in quantum chromo- and electrodynamics (QCD+QED) using C$^{⋆}$ boundary conditions in two ways: either non-perturbatively by sampling the joint probability distribution directly or by perturbatively expanding from an isospin-symmetric theory [...]

Over the past decade, an abundance of information from neutron-star observations, nuclear experiments and theory has transformed our efforts to elucidate the properties of dense matter. However, at high densities relevant to the cores of neutron stars (NSs), substantial uncertainty about the dense matter equation of state (EoS) remains. [...]

The phenomenon of liquid metal embrittlement (LME) poses safety concerns for welded joints in themanufacturing field. In present study, LME was observed in refill friction stir spot welding (refill FSSW)of dissimilar magnesium (Mg) to galvanized steel. [...]

Due to their exceptional properties, γ-TiAl based alloys present substantial prospect for aerospace and automotiveapplications. However, the significant disparity in plasticity between the D019-α2 and L10-γ phases greatlyaffects TiAl alloys’ service behavior. [...]

The performance of polycrystalline Ni-based superalloys is largely determined by the fraction and size of theintermetallic hardening phases, such as the γ′ phase. Understanding the evolution of the γ′ precipitate size andvolume fraction during the complex thermomechanical process chain is essential for optimizing the mechanicalproperties of polycrystalline Ni-based superalloys. [...]

The present study employs in-situ high-energy X-ray diffraction (HEXRD) to investigate the β-AlFeSi→α-Al(Fe,Mn)Si transformation in a 6063 Al alloy during homogenization heat treatment. The characteristics of HEXRD,combined with the experimental setup, enable an evaluation of the evolution of individual diffraction peaks as afunction of temperature and time. [...]