A novel low cost 2000 MPa grade ultra-high strength steel with balanced strength and toughness

Y. H. Gao, S. Z. Liu, Xiaobing Hu, Q. Q. Ren, Y. Li, Vinayak P Dravid, C. X. Wang*

*Corresponding author for this work

Research output: Contribution to journalArticle

Abstract

A novel low cost martensitic based ultra-high strength steel (UHSS) with a tensile strength of 2020 MPa and fracture toughness of 105 MPa m1/2 achieved by nanoscale β-NiAl and M2C precipitates was developed. The strength and toughness of this experimental alloy are comparable to those of the commercially used UHSSs strengthened by only M2C carbides. However, the raw materials cost of this experimental steel is greatly reduced because of low Ni–Co concentration.

Original languageEnglish (US)
Pages (from-to)298-302
Number of pages5
JournalMaterials Science and Engineering A
Volume759
DOIs
StatePublished - Jun 24 2019

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high strength steels
toughness
High strength steel
Toughness
grade
Steel
fracture strength
carbides
tensile strength
Carbides
Costs
Fracture toughness
Precipitates
low concentrations
precipitates
Raw materials
Tensile strength
steels
costs

Keywords

  • Low cost
  • MC secondary carbides
  • Martensitic steels
  • Ultra high strength-facture toughness balance
  • β-NiAl particles

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

@article{df83da9f9be443fd9cb0703d34dcdeed,
title = "A novel low cost 2000 MPa grade ultra-high strength steel with balanced strength and toughness",
abstract = "A novel low cost martensitic based ultra-high strength steel (UHSS) with a tensile strength of 2020 MPa and fracture toughness of 105 MPa m1/2 achieved by nanoscale β-NiAl and M2C precipitates was developed. The strength and toughness of this experimental alloy are comparable to those of the commercially used UHSSs strengthened by only M2C carbides. However, the raw materials cost of this experimental steel is greatly reduced because of low Ni–Co concentration.",
keywords = "Low cost, MC secondary carbides, Martensitic steels, Ultra high strength-facture toughness balance, β-NiAl particles",
author = "Gao, {Y. H.} and Liu, {S. Z.} and Xiaobing Hu and Ren, {Q. Q.} and Y. Li and Dravid, {Vinayak P} and Wang, {C. X.}",
year = "2019",
month = "6",
day = "24",
doi = "10.1016/j.msea.2019.05.039",
language = "English (US)",
volume = "759",
pages = "298--302",
journal = "Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing",
issn = "0921-5093",
publisher = "Elsevier BV",

}

A novel low cost 2000 MPa grade ultra-high strength steel with balanced strength and toughness. / Gao, Y. H.; Liu, S. Z.; Hu, Xiaobing; Ren, Q. Q.; Li, Y.; Dravid, Vinayak P; Wang, C. X.

In: Materials Science and Engineering A, Vol. 759, 24.06.2019, p. 298-302.

Research output: Contribution to journalArticle

TY - JOUR

T1 - A novel low cost 2000 MPa grade ultra-high strength steel with balanced strength and toughness

AU - Gao, Y. H.

AU - Liu, S. Z.

AU - Hu, Xiaobing

AU - Ren, Q. Q.

AU - Li, Y.

AU - Dravid, Vinayak P

AU - Wang, C. X.

PY - 2019/6/24

Y1 - 2019/6/24

N2 - A novel low cost martensitic based ultra-high strength steel (UHSS) with a tensile strength of 2020 MPa and fracture toughness of 105 MPa m1/2 achieved by nanoscale β-NiAl and M2C precipitates was developed. The strength and toughness of this experimental alloy are comparable to those of the commercially used UHSSs strengthened by only M2C carbides. However, the raw materials cost of this experimental steel is greatly reduced because of low Ni–Co concentration.

AB - A novel low cost martensitic based ultra-high strength steel (UHSS) with a tensile strength of 2020 MPa and fracture toughness of 105 MPa m1/2 achieved by nanoscale β-NiAl and M2C precipitates was developed. The strength and toughness of this experimental alloy are comparable to those of the commercially used UHSSs strengthened by only M2C carbides. However, the raw materials cost of this experimental steel is greatly reduced because of low Ni–Co concentration.

KW - Low cost

KW - MC secondary carbides

KW - Martensitic steels

KW - Ultra high strength-facture toughness balance

KW - β-NiAl particles

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M3 - Article

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VL - 759

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EP - 302

JO - Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing

JF - Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing

SN - 0921-5093

ER -