One of the most important dilemmas in materials science is to overcome the strength-ductility trade-off. There is an increasing trend toward designing alloys with strong precipitates in order to tackle this issue. The brittle sigma phase, a prevalent precipitate in high-entropy alloys, is responsible for the deterioration of the mechanical properti...
Harmonic structured material (HSM) of coarse-grained core and fine-grained shell microstructure in SS304L was designed using a three-dimensional numerical model developed to simulate the unique deformation behavior of heterostructured materials. Hetero-deformation induced (HDI) strengthening feature was implemented into the model by considering the...
The influence of reheating temperatures on hot ductility is investigated in two Ni-, Mo-, and Cu-containing low-carbon steels. The effects of solution treatment conditions at 1623, 1673 K, and remelting at 1803 K on the reduction in area (RA) are analyzed. The results show an RA trough in the range of 973–1173 K in all experimental conditions. At 9...
The loess-paleosol sequences in the Chinese Loess Plateau (CLP) are an important terrestrial paleoclimate record. However, quantitative understanding of the response of paleosol development to various climate and environmental factors remains poor. Based on simulations with combined soil-climate models (SoilGen2-LOVECLIM1.3), this study investigate...
© 2022 Elsevier B.V.Efforts have been made to intentionally activate multiple strengthening mechanisms in a single alloy because individual strengthening effects have not been sufficiently exhibited in previous alloys with multi-strengthening mechanisms. Here, we design a novel high-entropy alloy with multi-strengthening mechanisms through a stepwi...
status: published
status: published
Hall-Petch relationship was investigated for austenitic stainless steels with either 0.3 wt% C or N. It was found that Hall-Petch slope was higher for the nitrogen-containing steel, which implied that higher stress was required to activate the dislocation source in adjacent grains. It was suggested that the nitrogen in the steel generated slip plan...
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Investigations of dynamic deformation and ballistic performance of ultra-high-strength lightweight steels for steel armor applications have not been conducted to date. In this study, effects of boron(B)-doping on ballistic performance were explored in subzero-treated Fe-0.3C-9Mn-5Al and Fe-0.3C-9Mn-5Al-0.005B (wt%) lightweight steels in relation to...
