Cr元素对Fe基块体非晶合金玻璃形成能力及耐腐蚀性能的影响

Translated title of the contribution: Effect of Cr Element on Glass Forming Ability and Corrosion Resistance of Fe-based Bulk Amorphous Alloys

Bin Xiong, Xue Li, Jibo Zheng, Xining Li, Gonghao Lu, Zhenmin Wang, Dongying Ju, Makino Akihiro

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

Fe68.4-xCo7.6Si7B10P5C2Crx (x=0, 1, 2, 3) bulk amorphous alloys were prepared using micro alloying. The ribbon and rod samples were prepared by single-roller melt spinning and copper mold casting, respectively. The thermodynamic properties and glass forming ability of the bulk amorphous alloys were characterized by XRD, DSC and DTA. Further, the corrosion behaviors of the amorphous alloys were tested in H2SO4 solution using a potentiodynamic polarization method. The results show that the glass forming ability of the amorphous alloys increases with the addition of Cr element. When the Cr content is 2 at%, the largest supercooled liquid phase region is ΔTx=59 K for the Fe68.4-xCo7.6Si7B10P5C2Crx (x=0, 1, 2, 3) bulk amorphous alloys, and a rod-like amorphous alloy sample is obtained with 5 mm in diameter. Moreover, in the 1 mol/L H2SO4 solution, a protective layer rich in Cr elements forms on the surface of the alloy because of the addition of Cr element, which can effectively prevent the further corrosion of the material. Therefore, the corrosion resistance improves significantly.

Translated title of the contributionEffect of Cr Element on Glass Forming Ability and Corrosion Resistance of Fe-based Bulk Amorphous Alloys
Original languageChinese
Pages (from-to)701-704
Number of pages4
JournalXiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering
Volume47
Issue number2
Publication statusPublished - 2018 Feb 1

Keywords

  • Corrosion resistance
  • Fe-based bulk amorphous alloys
  • Glass forming ability

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Metals and Alloys
  • Electrical and Electronic Engineering
  • Materials Chemistry

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