Journal ArticleDOI
Overview no. 63 Non-equilibrium grain boundary segregation of boron in austenitic stainless steel—I. Large scale segregation behaviour
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TLDR
In this paper, secondary ion mass spectrometry (SIMS) has been used to study boron grain boundary segregation in austenitic stainless steels of the types 316L and Mo-free 316L.About:
This article is published in Acta Metallurgica.The article was published on 1988-01-01. It has received 192 citations till now. The article focuses on the topics: Boron & Isotopes of boron.read more
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Microstructural design of hard coatings
TL;DR: In this article, the authors demonstrate the correlation between microstructure and mechanical as well as tribological properties of hard ceramic coatings and demonstrate that nanostructure dependent hardness increase (compared to hardness of the bulk counterparts) sustains higher annealing temperatures than hardness increase due to an increased density of point-and/or line-defects.
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On the effect of alloy composition on martensite start temperatures and latent heats in Ni–Ti-based shape memory alloys
TL;DR: In this paper, the concentration dependence of the martensite start temperature (M S ) in Ni-Ti-based shape memory alloys (SMAs) was investigated and it was shown that the strong dependence of M S on alloy composition in binary, ternary and quaternary SMAs is due to a stabilization of the B2 phase by structural relaxations around Ni antisite atoms.
Journal ArticleDOI
Modelling the effect of deformation-induced vacancies on segregation and precipitation
TL;DR: In this article, the influence of deformation-induced excess vacancies on segregation and on precipitation is discussed within a phenomenological framework, where the authors show that vacancies are mainly generated by the non-conservative movement of thermal jogs and the sinks for these vacancies are dislocations and grain boundaries.
Journal ArticleDOI
Kinetics of non-equilibrium grain-boundary segregation
Xu Tingdong,Cheng Buyuan +1 more
TL;DR: In this paper, the grain boundary segregation level during cooling was calculated using effective time method and correction factor method, which is along the same thought structure as McLean's model of EGS.
Journal ArticleDOI
Current Challenges and Opportunities in Microstructure-Related Properties of Advanced High-Strength Steels
Dierk Raabe,Binhan Sun,Alisson Kwiatkowski da Silva,Baptiste Gault,Baptiste Gault,Hung-Wei Yen,Karo Sedighiani,Karo Sedighiani,Prithiv Thoudden Sukumar,Isnaldi R. Souza Filho,Shyam Katnagallu,Shyam Katnagallu,Eric Aimé Jägle,Eric Aimé Jägle,Philipp Kürnsteiner,Navyanth Kusampudi,Leigh T. Stephenson,Michael Herbig,Christian Liebscher,Hauke Springer,Hauke Springer,Stefan Zaefferer,Vitesh Shah,Su Leen Wong,Christian Baron,Martin Diehl,Franz Roters,Dirk Ponge +27 more
TL;DR: In this article, the deformation and strain hardening mechanisms of Mn-containing steels that utilize complex dislocation substructures, nanoscale precipitation patterns, deformation-driven transformation, and twinning effects are discussed.
References
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Field Ion Microscopy
TL;DR: In this article, the basic physical effects used in field ion microscopy are not yet fully understood, and a modified mechanism of field ionization and image interpretation has been proposed, using a high-voltage field ion microscope operated at up to 45 kV.
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Solute induced hardening near grain boundaries in zone refined metals
TL;DR: In this article, a solute-clustering model is proposed for grain boundary quench-hardening based on preferential solutevacancy interactions and non-ideal thermodynamic behavior of the binary system.
Journal ArticleDOI
Non-equilibrium grain-boundary segregation in austenitic alloys
TL;DR: In this paper, the theory of non-equilibrium grain-boundary segregation is discussed with particular reference to recent ideas and data relating to boron grain boundary segregation in Type 316 austenitic steel and a model is developed which, it is hoped, will more realistically describe the magnitude and extent of the process.
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Grain boundary diffusion mechanisms in metals
TL;DR: In this article, the authors reviewed the current knowledge of the atomistic mechanisms responsible for grain boundary diffusion phenomena and concluded that the atomic migration occurs by a point defect exchange mechanism which, in at least the vast majority of boundaries in simple metals, most likely involves grain boundary vacancies.
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Overview no. 63 Non-equilibrium grain boundary segregation of boron in austenitic stainless steel—IV. Precipitation behaviour and distribution of elements at grain boundaries
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