Results 61 to 70 of about 18,897 (273)
Modeling the effect of prior austenite grain size on bainite formation kinetics
Acta Materialia, 2023 While experiments show that refining the prior austenite grain size can either accelerate or decelerate bainite formation in steels, kinetic models based on the successive nucleation of bainitic ferrite subunits can only predict an acceleration. In this work we develop a physically-based model for bainite kinetics assuming a displacive growth mechanism
Avila, Daniel dos Santos +2 more
openaire +3 more sources
Advanced Engineering Materials, EarlyView.Do not let thermal drift and instrument artifacts deceive high‐temperature nanoindentation results. We compare classical Oliver–Pharr and automatic image recognition analyses across steels and a Ni alloy to quantify these effects. Accounting for artifacts reveals systematic softening with temperature, while Cr and Ni additions boost resistance ...
Velislava Yonkova +2 more
wiley +1 more source
A new study on the growth behavior of austenite grains during heating processes
Scientific Reports, 2017 In this paper, the effects of the heating temperature and holding time on the austenite grain growth of SCM435 steel were studied and analyzed in terms of the average, macro-axis and minor-axis size of the grains. The results indicated that the classical
Dong Xu +4 more
doaj +1 more source
The combined effect of chemical composition and cooling rate on transformation temperatures of hypoeutectoid steels [PDF]
, 2018 The transformation temperatures A(r3) and A(r1) of four unalloyed hypoeutectoid steels with a carbon content of 0.029-0,73 % were determined using dilatometric tests.
Kawulok, Petr +6 more
core +1 more source
Additive Manufacturing of NiTi Shape Memory Alloys for Elastocaloric Applications: A Review
Advanced Functional Materials, EarlyView.Additive manufacturing enables complex NiTi architectures that overcome key limitations in elastocaloric refrigeration, including poor heat transfer and high mechanical work input. This review surveys recent advances in LPBF‐ and DED‐fabricated NiTi shape memory alloys for elastocaloric applications, highlighting process–structure–performance ...
Ignatius Andre Setiawan +7 more
wiley +1 more source
Prediction of Austenite Recrystallized Grain Size in Hot Rolled Strip of C-Mn Steel
Teshugang, 2005 Based on the research on physical metallurgy prediction model including the model of austenite recrystallization in microstructure evolvement, carbo-nitride precipitation, and relation between austenite phase transformation and structure-properties ...
李壮 +4 more
doaj
Effect of cooling rate and forced convection on as-cast structure of 2205 duplex stainless steel [PDF]
China Foundry, 2015 To forecast the as-cast structure and ferrite-austenite phase ratio of 2205 duplex stainless steel (DSS), the effects of cooling rate and forced convection were observed in a high-vacuum resistance furnace in which the forced convection was created by ...
Cheng Zhang +2 more
doaj
Metals, 2019 Thin-slab cast direct-rolling (TSCDR) has become a major process for flat-rolled production. However, the elimination of slab reheating and limited number of thermomechanical deformation passes leave fewer opportunities for austenite grain refinement ...
Tihe Zhou +5 more
doaj +1 more source
, 2012 Austenite reversion during tempering of a Fe-13.6Cr-0.44C (wt.%) martensite results in an ultrahigh strength ferritic stainless steel with excellent ductility.
Choi, P. +5 more
core +1 more source
A theoretical review of the operation of vibratory stress relief with particular reference to the stabilization of large-scale fabrications [PDF]
, 2011 Vibratory stress relief (VSR) is widely used on large welded fabrications to stabilize the structures so that they do not distort during further machining or during operational duty.
C Walker +6 more
core +1 more source