ELECTROCHEMICAL POLARIZATION STUDIES ON SPARK PLASMA SINTERED SS316-B4C COMPOSITE

K. Baranidharan, S. Thirumalai Kumaran, M. Uthayakumar and P. Parameswaran
Additional contact information
K. Baranidharan: Department of Automobile Engineering, Kalasalingam Academy of Research and Education, Krishnankoil 626126, Tamil Nadu, India
S. Thirumalai Kumaran: ��Department of Mechanical Engineering, PSG Institute of Technology and Applied Research, Coimbatore 641062, Tamil Nadu, India
M. Uthayakumar: ��Faculty of Mechanical Engineering, Kalasalingam Academy of Research and Education, Krishnankoil 626126, Tamil Nadu, India
P. Parameswaran: �Metallurgy and Materials Group, Indira Gandhi Centre for Atomic Research, Kalpakkam 603102, Tamil Nadu, India

Surface Review and Letters (SRL), 2023, vol. 30, issue 10, 1-12

Abstract: The corrosion behavior of 316 stainless steel with 10wt.% B4C composites has been investigated using electrochemical measurements and electron backscattered diffraction (EBSD) and scanning electron microscopy (SEM) analyzes are performed. Spark plasma sintering (SPS) is used to achieve various heat treatments, which are performed at the temperatures of 800∘C, 900∘C, and 1000∘C. It significantly affects the materials’ ability to resist corrosion. The increase in grain size improves corrosion resistance, except at 900∘C when recrystallization is imperfect. However, grain homogeneity should be taken into consideration. The corrosion behavior of the composites is assessed using Tafel plots. The corrosion rate of the sample at 900∘C (0.2945mm/yr) is significantly lower than the rates of the samples at 800∘C and 1000∘C, respectively, as per the corrosion process of composites of 3.5wt.% NaCl solution. The B4C contents have a significant impact on the particle size reduction, low-density average crystallite size, mechanical, hardness, corrosion resistance, and thermal stability of composite powder. It is primarily utilized in nuclear applications as a neutron radiation absorbent. The research has revealed that the sample at 900∘C has fewer grain boundaries and the finest passivation film quality and superior corrosion resistance are found in intermediate grain size.

Keywords: Corrosion; EBSD; spark plasma sintering; 316 stainless steel; boron carbide (search for similar items in EconPapers)
Date: 2023
References: Add references at CitEc
Citations:

Downloads: (external link)
http://www.worldscientific.com/doi/abs/10.1142/S0218625X23500701
Access to full text is restricted to subscribers

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:wsi:srlxxx:v:30:y:2023:i:10:n:s0218625x23500701

Ordering information: This journal article can be ordered from

DOI: 10.1142/S0218625X23500701

Access Statistics for this article

Surface Review and Letters (SRL) is currently edited by S Y Tong

More articles in Surface Review and Letters (SRL) from World Scientific Publishing Co. Pte. Ltd.
Bibliographic data for series maintained by Tai Tone Lim ().