The correlation between (Ca, Mg, Al)-Ox-Sy inclusions and localised marine corrosion of EH36 steels was investigated. According to their ability induce corrosion, the were categorised as 'active' or 'inactive', main difference them ratio CaO/Al2O3. residual stress at active inclusion/matrix interface higher than yield strength steel; therefore, a local plastic deformation region preferentially formed, triggering initiation. Moreover, occluded cell accelerated propagation, finally dissolution...

The influence of the external magnetic field on microstructures and mechanical properties medium manganese steel during tempering is investigated. Microstructural analysis reveals that a high accelerates martensite recovery, width martensitic laths increased by 150% 130% after at 200 or 500 °C, respectively. This phenomenon likely attributed to elevating diffusion activation energy. Dislocation motion accelerated due field, leading dislocation accumulation. provides more nucleation sites for...

Vertically stacking two-dimensional materials into van der Waals (vdW) heterostructures (HS) is deemed to be an effective strategy tailor their physical properties and enrich applications in modern nanoelectronics. Here, we study the geometry, electronic, optical of Janus Ga2SeTe/In2SSe by using first-principles calculations. We consider four models with alternative chalcogen atom layer sequence five potential configurations, find that most energy favorable pattern AB for each model. The...

The structural, electronic, spin–orbit splitting and piezoelectric properties of monolayer Janus α-Ga 2 XY (X ≠ Y = P, As, Sb, Bi) were systematically investigated.

The present investigation endeavors to explore the influence of rare earth elements on strength and plasticity characteristics low-carbon microalloyed steel under tensile loading conditions. findings from conducted tests indicate that incorporation earths leads a notable enhancement in yield strength, ultimate ductility properties steel. A comparative analysis microstructures reveals presence significantly refines optimizes microstructure This optimization is manifested through reduction...

The mechanism of austenite formation in medium Mn steel tempered at 700 °C for 3 h without and with a 12 T magnetic field was investigated. application results lattice distortion the martensite matrix, implying presence fewer interstitial carbon atoms embedded matrix. decreased are either free matrix or involved nanoscale carbides, both which prepare growth carbides formation. Meanwhile, doping enables paramagnetic to undergo magneto-structural coupling transformation (i.e., γ-Fe transforms...

Two-dimensional (2D) transition metal dihalides (TMDHs) have attracted great interest owing to their unique magnetic and semiconductor properties. Compared with the mirror/inversion symmetric materials, 2D Janus materials possess vertical intrinsic dipole moment, which offer a versatile platform for fundamental physics future spintronic devices. Here, we systematically explore electronic properties of MXY (M = Co Ni; X ≠ Y Cl, Br, I) monolayers bilayers by using density functional theory....

The effect of aluminium content (0·023, 0·038 and 0·070 wt-%) on microstructure impact toughness simulated coarse grained heat affected zone (CGHAZ) high strength low alloy steels with different inputs (20, 100 200 kJ cm −1 ) was investigated. CGHAZ consisted predominantly granular bainite. martensite–austenite constituents became finer its volume fraction decreased increasing content, irrespective input level. the improved remarkably even at . It attributed to reduction in refined by...

Results of dynamic tensile testing three-step low-temperature-transformed nanostructured bainitic steel and quenching partitioning martensitic at different strain rates (0.1–500 s−1) are reported here. The results showed that the high carbon film-like austenite was much more stable than low blocky during deformation. bainite exhibited remarkable properties due to better transformation-induced plasticity effect rate hardening by retained austenite. big gap in engineering stress curves...

The fine microstructure of martensite–austenite (M–A) constituents in simulated coarse grained heat affected zone (HAZ) high strength low alloy steel with varying aluminium content (0·038 and 0·070 wt-%) at 100 kJ cm −1 input welding was investigated. result shows that M–A 0·038%Al consisted lath martensite retained austenite. austenite distributed along the lath. Whereas, 0·070%Al austenite, as well a small amount twinned martensite. becoming higher slightly than 0·038%Al. Accordingly,...

The influence of austenitising temperature on the tensile properties low bainitic steel was investigated. With increasing temperature, a significant change elongation found between 850 and 950 °C, which changed from 1.0 ± 0.5 to 10.7 2.0%; while there slight increase 1050 °C (11.2 1.5%). By characterising retained austenite at necking matrix, we that is obviously correlated with content, also determined by volume during test. transformation induced plasticity (TRIP) effect, contributes...

The microstructure–property relationship of a novel wire rod was investigated after Nb microalloying. tensile properties were significantly improved. impact on pearlitic transformation, residual stress, strain, and microstructure uniformity discussed in this paper. By changing the alloy phase diagram, microalloying improved undercooling resulting finer lamellar spacing. Residual stresses strain as different kinds deformation energy storage satisfied water-bed effect After hot rolling,...

The tempering resistance and stability of retained austenite in superbainitic quenching–partitioning martensitic steels were investigated over the temperature range 400 to 700°C. X-ray diffraction analysis hardness tests showed that steel contained a considerable amount (26·6 vol.-) had relatively high up 556 HV1 after at ∼600°C. In contrast, fraction considerably lower (24·5 vol.- 385 HV1) same cycle. present work also higher stability, probably due carbon rich austenite.

Comparative studies were carried out on the effect of high magnetic field pearlite transformation Al-containing carbon steels under furnace slow cooling condition. For 1.37Al-bearing steel, amount was only 6 ± 3 vol.-% without field, whereas full obtained a 12-T field. free-Al no occurred, lots bainite formed In addition, interlamellar spacing increased from 100 7 to 112 18 nm by application It has been proved that steel promoted and addition aluminium. This is part thematic issue Pearlitic...