Some Newly Discovered Properties of Iron and Manganese.

Hadfield, Robert

doi:10.1680/imotp.1888.21056

Cited by 6 publications

(3 citation statements)

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“…The SLM-316L and C-316L specimens were deformed sequentially by twinning and slip [53] and by the strain induced martensite (α ′ -martensite) formation and slip [54,55]. The formations of mechanical twins and α ′ -martensite are influenced by the applied stress and the stacking fault energy (SFE) [56].…”

Section: Discussionmentioning

confidence: 99%

The strain rate sensitive flow stresses and constitutive equations of a selective-laser-melt and an annealed-rolled 316L stainless steel: A comparative study

Güden

Enser

Bayhan

et al. 2022

Materials Science and Engineering: A

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Section: Discussionmentioning

confidence: 99%

The strain rate sensitive flow stresses and constitutive equations of a selective-laser-melt and an annealed-rolled 316L stainless steel: A comparative study

Güden

Enser

Bayhan

et al. 2022

Materials Science and Engineering: A

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“…However, C can be added, to a certain degree before forming cementite, to compensate for the reduction in Mn [60]. Fully austenitic steels with Mn contents between 10-14 wt% Mn and 0.8-1.4 wt% C are also known as Hadfield steels [61], named after Sir Robert Hadfield who developed these steels in 1888 [62]. Hadfield steels have high hardness and strain hardening rates, and are therefore used in wear-resistant applications such as earth-moving equipment.…”

Section: Metallurgy Of Medium Mn Steelsmentioning

confidence: 99%

A review of the processing, microstructure and property relationships in medium Mn steels

Kwok

Dye

2023

International Materials Reviews

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Medium Mn steels are an emerging class of 3rd generation advanced high-strength steels. These steels have received significant attention due to their high strengths, large ductilities and also lower cost compared to their predecessor high Mn Twinning Induced Plasticity (TWIP) steels. Additionally, medium Mn steels have been found to exhibit TWIP and/or Transformation Induced Plasticity (TRIP) effects which can be harnessed to give a high strain hardening rate. Many thermomechanical processing concepts in the literature have been developed, producing multiple microstructure types with differentmechanical properties. The present review therefore aims to summarise the current knowledge of medium Mn steel alloy design especially on the processing, microstructure and property relationships in medium Mn steels. It complements the review of Sun et al. [Physical metallurgy of medium-Mn advanced high-strength steels, Int Mater Rev. 2023.], written independently and in parallel, which focusses more on the phase interfaces and thermodynamics.

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“…Mn-containing steels exploiting twinning to provide hardening and therefore ductility date back to Hadfield steels, discovered by Sir Robert Hadfield in 1888 [1]. Current high Mn steels or TWIP steels are fully austenitic steels that deform by forming nano-scale twins in addition to dislocation glide [2,3].…”

Section: Introductionmentioning

confidence: 99%

Design of a high strength, high ductility 12 wt% Mn medium manganese steel with hierarchical deformation behaviour

Kwok

Rahman

et al. 2020

Materials Science and Engineering: A

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A novel medium Mn steel of composition Fe-12Mn-4.8Al-2Si-0.32C-0.3V was manufactured with 1.09 GPa yield strength, 1.26 GPa tensile strength and 54% elongation. The thermomechanical process route was designed to be industrially translatable and consists of hot and then warm rolling before a 30 min intercritical anneal. The resulting microstructure comprised of coarse elongated austenite grains in the rolling direction surrounded by necklace layers of fine austenite and ferrite grains. The tensile behaviour was investigated by in-situ neutron diffraction and the evolution of microstructure studied with Electron Backscattered Diffraction (EBSD). It was found that the coarse austenite grains contributed to the first stage of strain hardening by transforming into martensite and the fine austenite necklace grains contributed to the second stage of strain hardening by a mixture of twinning and transformation induced plasticity (TWIP and TRIP) mechanisms. This hierarchical deformation behaviour contributed to the exceptional ductility of this steel.

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Some Newly Discovered Properties of Iron and Manganese.

Cited by 6 publications

References 0 publications

The strain rate sensitive flow stresses and constitutive equations of a selective-laser-melt and an annealed-rolled 316L stainless steel: A comparative study

The strain rate sensitive flow stresses and constitutive equations of a selective-laser-melt and an annealed-rolled 316L stainless steel: A comparative study

A review of the processing, microstructure and property relationships in medium Mn steels

Design of a high strength, high ductility 12 wt% Mn medium manganese steel with hierarchical deformation behaviour

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