Extraction of Flow Behavior and Hall–Petch Parameters Using a Nanoindentation Multiple Sharp Tip Approach†
Sign Up to like & getrecommendations! Published in 2017 at "Advanced Engineering Materials"
DOI: 10.1002/adem.201600669
Abstract: An appealing idea to material scientists is to characterize the mechanical behavior of materials with minimal experimental effort while guaranteeing highly reliable results. Nanoindentation is a candidate technique to reach this objective. Though it is… read more here.
Keywords: extraction flow; flow behavior; petch parameters; hall petch ... See more keywords
Strengthening mechanism of gradient nanostructured body-centred cubic iron film: From inverse Hall-Petch to classic Hall-Petch
Sign Up to like & getrecommendations! Published in 2018 at "Computational Materials Science"
DOI: 10.1016/j.commatsci.2018.06.001
Abstract: Abstract Gradient-nanograined metals with high strength-ductility synergy would be used in applications of advanced coating materials. An in-depth understanding of their strengthening mechanisms plays a key role in the widespread use of gradient-nanograined structure for… read more here.
Keywords: gradient nanograined; gradient; classic hall; hall petch ... See more keywords
A unified mechanistic model for Hall-Petch and inverse Hall-Petch relations of nanocrystalline metals based on intragranular dislocation storage
Sign Up to like & getrecommendations! Published in 2021 at "Journal of The Mechanics and Physics of Solids"
DOI: 10.1016/j.jmps.2021.104530
Abstract: Abstract Nanocrystalline (NC) metals often show transition from Hall-Petch (HP) strengthening to inverse HP softening as the average grain size decreases below a critical value. Compared to the HP behavior whose mechanism is well understood… read more here.
Keywords: hall petch; hall; intragranular dislocation; grain ... See more keywords
Inverse Hall-Petch relationship of high-entropy alloy by atomistic simulation
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DOI: 10.1016/j.matlet.2020.128024
Abstract: Abstract Molecular dynamics simulations were carried out to investigate the mechanical properties and the Hall-Petch effect of high-entropy alloy using the interatomic potential for the multi-element FeNiCrCoCu. The transition from mechanical strengthening to softening was… read more here.
Keywords: entropy alloy; inverse hall; petch relationship; high entropy ... See more keywords
Friction stress and Hall-Petch relationship in CoCrNi equi-atomic medium entropy alloy processed by severe plastic deformation and subsequent annealing
Sign Up to like & getrecommendations! Published in 2017 at "Scripta Materialia"
DOI: 10.1016/j.scriptamat.2017.02.042
Abstract: Abstract The present work focuses on the friction stress and the Hall-Petch relationship in CoCrNi equi-atomic medium entropy alloy (MEA). The CoCrNi equi-atomic MEA and a Ni-40Co alloy were processed by high-pressure torsion and subsequent… read more here.
Keywords: alloy; cocrni; friction stress; equi atomic ... See more keywords
Hall-Petch relations and strengthening of Al-ZnO composites in view of grain size relative to interparticle spacing
Sign Up to like & getrecommendations! Published in 2018 at "Scripta Materialia"
DOI: 10.1016/j.scriptamat.2018.04.042
Abstract: Abstract We investigated the Hall-Petch relations in Al-ZnO composites with different matrix grain size (D) relative to interparticle spacing (L). For samples with D > L, it was found that grain refinement as described by Hall-Petch relation… read more here.
Keywords: petch; zno composites; grain size; hall petch ... See more keywords
Ultrastrong nanocrystalline stainless steel and its Hall-Petch relationship in the nanoscale
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DOI: 10.1016/j.scriptamat.2018.06.014
Abstract: Abstract An ultrastrong nanocrystalline stainless steel with a yield strength of ~2.0 GPa was reported and the Hall-Petch equation of the stainless steel in the nanoscale was determined. The effects of the grain refinement and element… read more here.
Keywords: stainless steel; steel; nanocrystalline stainless; hall petch ... See more keywords
Yielding nature and Hall-Petch relationships in Ti-6Al-4V alloy with fully equiaxed and bimodal microstructures
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DOI: 10.1016/j.scriptamat.2019.07.015
Abstract: Abstract Hall-Petch relationships were studied in Ti-6Al-4V alloy with fully equiaxed and two different bimodal microstructures obtained by intercritical annealing at 850 °C (BM850) and 950 °C (BM950). The Hall-Petch coefficient of the BM850 microstructure composed of… read more here.
Keywords: hall petch; petch relationships; nature; 6al alloy ... See more keywords
Nanocrystalline gold with small size: inverse Hall–Petch between mixed regime and super-soft regime
Sign Up to like & getrecommendations! Published in 2020 at "Philosophical Magazine"
DOI: 10.1080/14786435.2020.1765039
Abstract: ABSTRACT Molecular dynamics simulations were used to study the atomic mechanisms of deformation of nanocrystalline gold with 2.65–18 nm in grain size to explore the inverse Hall–Petch effect. Based on the mechanical responses, particularly the flow… read more here.
Keywords: super soft; inverse hall; size; hall petch ... See more keywords
Grain Boundary Sliding and Amorphization are Responsible for the Reverse Hall-Petch Relation in Superhard Nanocrystalline Boron Carbide.
Sign Up to like & getrecommendations! Published in 2018 at "Physical review letters"
DOI: 10.1103/physrevlett.121.145504
Abstract: The recent observation of the reverse Hall-Petch relation in nanocrystalline ceramics offers a possible pathway to achieve enhanced ductility for traditional brittle ceramics via the nanosize effect, just as nanocrystalline metals and alloys. However, the… read more here.
Keywords: petch relation; reverse hall; hall petch;
Effect of Recovery and Recrystallization on the Hall–Petch Relation Parameters in Submicrocrystalline Metals: II. Model for Calculating the Hall–Petch Relation Parameters
Sign Up to like & getrecommendations! Published in 2018 at "Russian Metallurgy (Metally)"
DOI: 10.1134/s0036029518050051
Abstract: A model is developed to calculate the Hall–Petch relation parameters for the submicrocrystalline (SMC) metals fabricated by severe plastic deformation (SPD) methods. The model is based on the assumption that the flow stress in SMC… read more here.
Keywords: relation parameters; petch relation; hall petch;