Control of Columnar to Equiaxed Transition in Solidification Macrostructure of Austenitic Stainless Steel Castings

Lekakh, Semen Naumovich; O’Malley, Ronald J.; Emmendorfer, Mark C.; Hrebec, Brenton

doi:10.2355/isijinternational.isijint-2016-684

Cited by 14 publications

(1 citation statement)

References 23 publications

(26 reference statements)

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“…Among all strengthening methods, only grain refinement can simultaneously increase strength, toughness, and plasticity of metal materials. [1] Therefore, fine grains are generally expected for most of the metals to improve their overall mechanical properties. The grain size of many alloys with eutectic microstructure such as Al-based, Mg-based, and so on can only be refined through inoculation during solidification.…”

Section: Introductionmentioning

confidence: 99%

Microstructures and Mechanical Properties of the 5Cr13 Martensite Stainless Steel Refined by Oxide Particles

Sun

Zhang

et al. 2021

steel research int.

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Herein, Al2O3 and TiO2 particles are introduced into the 5Cr13 high‐carbon martensite stainless steel, aiming to improve its mechanical properties and cold‐deformation ability. The results prove that the introduced oxide particles lead to enlarged equiaxed zone of the ingot, together with refinement in its columnar and equiaxed dendrites. They exist in the form of fine nanoparticles and serve as crucial heterogeneous nuclei to refine the austenite grains and martensitic microstructures of the steel. Then the oxide‐added 5Cr13 steel exhibits higher hardness and better temper resistance, as well as good impact toughness. Accordingly, the use of the present master alloy provides a great convenience for the mass production of high‐performance steels in the future.

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Section: Introductionmentioning

confidence: 99%