SpringerLink
Log in

High boron iron-based alloy and its modification

  • Published:
Journal of Iron and Steel Research International Aims and scope Submit manuscript

Abstract

High boron iron-based alloy, a new kind of wear-resistant material was developed, and its microstructure and mechanical properties were studied. Moreover, the modification with V, Ti and RE-Mg was carried out as well. The results indicate that the high boron iron-based alloy comprises a dendritic matrix and interdendritic eutectic borides under as-cast condition. The matrix is made up of fine pearlite, and the eutectic boride has a crystal structure of M2B (M represents Fe, Cr or Mn). The boride has a microhardness of HV 1 425 and is distributed in the form of continuous network, which is detrimental to the toughness of high boron iron-based alloy. Nevertheless, high boron iron-based alloy has a higher toughness than that of white cast iron, which is attributed to the matrix that is made up of lath-type martensite with high toughness. In order to increase the toughness further, V, Ti and RE-Mg were adopted to improve the morphology of boride. The results indicate that after modification the matrix grain is decreased in size by half, and the size of boride is also decreased, moreover, it is distributed more even though it is still continuous. After heat treatment, the boride network is break up and results in the further improvement of toughness of high boron iron-based alloy.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Subscribe and save

Springer+ Basic
EUR 32.99 /Month
  • Get 10 units per month
  • Download Article/Chapter or Ebook
  • 1 Unit = 1 Article or 1 Chapter
  • Cancel anytime
Subscribe now

Buy Now

Price includes VAT (Germany)

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. Anon. Boron Steel [J]. Metal Progress, 1951, 60: 81.

  2. Taylor K A, Hansen S S. Boron Hardenability Effect in Ther-momechanically Processed, Direct-Quenched 0.2 Pct C Steels [J]. Metallurgical Transaction, 1990, 21A(6): 1697.

    Article  Google Scholar 

  3. Kapadia B M. Effect of Boron Additions on the Toughness of Heat-Treated Low-Alloy Steels [J]. Journal of Heat Treating, 1987, 5(1): 4.

    Article  Google Scholar 

  4. Jameson A S. Carbon Content Determines Boron Steel Behavior [J]. Steel, 1952, 131(15): 154.

    Google Scholar 

  5. Lin H R, Cheng G H. Hardenability Effect of Boron on Carbon Steels [J]. Materials Science and Technology, 1987, 3(10): 855.

    Article  Google Scholar 

  6. Gavrilova A V, Marchenko V A, Babenko N P. Substructural Features of Hardened Low-Alloy Steel With Boron [J]. Metal Science and Heat Treatment, 1990, 32(1–2): 95.

    Google Scholar 

  7. Choo W Y, Bae C M. Drawing Behavior of Pearlitic Steel Wire Rods Controlled by Boron Addition in Medium Carbon Steel [J]. ISIJ International, 2002, 42(suppl): 47.

    Article  Google Scholar 

  8. Koyama R, Tsukamoto T. Boron-Added Steel [J]. Sumitomo Metals, 1996, 48(4): 195.

    Google Scholar 

  9. Everhart J L. New Titanium-Boron Alloy Steel Shows Promise for Jets and Rockets [J]. Materials and Methods, 1952, 36 (3): 96.

    Google Scholar 

  10. Middleham T H, Rait J R, Colbeck E W. High-Boron Alloy Steel [J]. Journal of the Iron and Steel Institute, 1957, 187 (1): 1.

    Google Scholar 

  11. Baker H. ASM Handbook: Alloy Phase Diagram [M]. 10th ed. Materials park: ASM International Handbook Committee, 1990.

    Google Scholar 

  12. Egorov M D, Sapozhnikov Yu L, Shakhnazarov Yu V. Effect of Carbon on the Structure, Hardness, and Thermal Stability of Boron-Chromium Cast Steels [J]. Metal Science and Heat Treatment, 1989, 31(5–6): 387.

    Article  Google Scholar 

  13. Gol’dshtein Ya E, Mizin V G. Some Peculiarities of the Structure of High Boron Steels [J]. Metal Science and Heat Treatment, 1988, 30(7–8): 479.

    Article  Google Scholar 

  14. The First Steel-Making Plant of Benxi Iron and Steel Co Ltd. Boron Steel [M]. Bei**g: Metallurgical Indurstry Press, 1977 (in Chinese).

    Google Scholar 

  15. Nevar N F, Belskii E I. High-Boron Alloy Steel for Casting [P]. SU: 1581771, 1990-07-30.

  16. Lakeland K D. Rolls for Metal Sha** [P]. US: 6171222B1, 2001-01-09.

  17. Lakeland K D. Alloy Composition and Improvements in Mold Components Used in the Productionn of Glass Containers [P]. US: 6689312B2, 2004-02-10.

  18. Guo C Q. Improving the Ductility and Toughness of Fe-Cr-B Cast Irons [D]. Brisbane: The University of Queensland, 2002.

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Key Laboratory for Advanced Materials Processing Technology of Ministry of Education, Department of Mechanical Engineering, Tsinghua University, 100084, Bei**g, China

    Zhong-li Liu (Doctor), **ang Chen & Yan-xiang Li

  2. Zhedong Precision Casting Co Ltd, 315137, Ningbo, Zhejiang, China

    Kai-hua Hu

Authors
  1. Zhong-li Liu
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. **ang Chen
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Yan-xiang Li
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. Kai-hua Hu
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Zhong-li Liu.

Additional information

Foundation Item: Item Sponsored by National Key Technologies Research and Development Program of China (2005BA324C)

Rights and permissions

Reprints and permissions

About this article

Cite this article

Liu, Zl., Chen, X., Li, Yx. et al. High boron iron-based alloy and its modification. J. Iron Steel Res. Int. 16, 37–42 (2009). https://doi.org/10.1016/S1006-706X(09)60041-8

Download citation

  • Revised:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1016/S1006-706X(09)60041-8

Key words

Search

Navigation