Mechanical and Microstructural Characterization of a New Corrosion Resistant Stainless Steel

I. Voiculescu, V. Geantǎ, R. Stefǎnoiu, C. Cotruţ, R. Ciocoiu, M. Ionescu

Research output: Contribution to journalConference article

1 Citation (Scopus)

Abstract

The paper investigates the manner in which the chemical composition and delivery status of a new type of stainless steel, highly alloyed with Ni and Cr, affect mechanical properties, microstructure and corrosion resistance. The results obtained during the mechanical test (tensile, compression, Charpy test and micro-hardness) have revealed promising values. During the corrosion test, the preferential attack of the reagent (Aqua regia) located on the grain boundaries, inclusions or polyhedral precipitates have been observed. On the corroded surfaces, some localized pitting effects on grain boundaries have been revealed. The analyses of the parameter values recorded during the corrosion test revealed that the corrosion current density had a low value, comparable to that of other specific types of stainless steels. The actual Icorr (1.089 μA/cm2) value measured for the experimental alloy proves good resistance to corrosion in 3% NaCl saline solution. The estimated rate of corrosion presented acceptable values (0.011 mm/year).

Original languageEnglish
Article number012018
JournalIOP Conference Series: Materials Science and Engineering
Volume374
Issue number1
DOIs
Publication statusPublished - 12 Jun 2018
Externally publishedYes
Event2018 EUROINVENT International Conference on Innovative Research, EUROINVENT ICIR 2018 - Iasi, Romania
Duration: 17 May 201818 May 2018

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Stainless Steel
Stainless steel
Corrosion
Grain boundaries
Pitting
Sodium Chloride
Microhardness
Corrosion resistance
Precipitates
Current density
Mechanical properties
Microstructure
Chemical analysis

ASJC Scopus subject areas

  • Materials Science(all)
  • Engineering(all)

Cite this

Mechanical and Microstructural Characterization of a New Corrosion Resistant Stainless Steel. / Voiculescu, I.; Geantǎ, V.; Stefǎnoiu, R.; Cotruţ, C.; Ciocoiu, R.; Ionescu, M.

In: IOP Conference Series: Materials Science and Engineering, Vol. 374, No. 1, 012018, 12.06.2018.

Research output: Contribution to journalConference article

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