Uticaj tiouree na otpornost na koroziju mekog čelika uronjenog u simulirani rastvor betonskih pora

Autori

  • Krishnasamy Vigneswari Sri Meenakshi Government Arts College for Women (Autonomous), PG Department of Chemistry, Madurai, India Autor
  • Karunaivel Kavipriya PSNA College of Engineering and Technology, Department of Chemistry, Dindigul, India Autor
  • Brintha Arockiasamy Santhiya Sri Meenakshi Government Arts College for Women (Autonomous), PG Department of Chemistry, Madurai, India + Sacred Heart College of Arts and Science, Department of Chemistry, Dindigul, India Autor
  • Veerapandian Velkannan Thiagarajar College of Engineering, Department of Chemistry, Thiruparankundram, Madurai, Tamil Nadu, India Autor
  • Gurmeet Singh Pondicherry University, Puducherry, India Autor
  • Hashem Abdulhameed Al Kuwait Institute for Scientific Research, Petroleum Research Centre, Kuwait City, Kuwait Autor
  • Anitha Nilavan Mother Teresa Women's University, St. Antony's College of Arts and Sciences for Women, Corrosion Research Centre, Department of Chemistry, Dindigul, India Autor
  • Susai Rajendran Mother Teresa Women's University, St. Antony's College of Arts and Sciences for Women, Corrosion Research Centre, Department of Chemistry, Dindigul, India + Pondicherry University, Centre for Nanoscience and Technology, Puducherry, India Autor
  • Časlav Lačnjevac University of Belgrade, Faculty of Agriculture, Serbia Autor

DOI:

https://doi.org/10.5937/zasmat2204447S

Ključne reči:

tiourea, otpornost na koroziju, meki čelik, simulirani rastvor betonskih pora, elektrohemijska ispitivanja

Apstrakt

Otpornost mekog čelika na koroziju u rastvoru simuliranih pora betona (SCPS) u odsustvu i prisustvu tiouree je ispitana polarizacionom studijom i spektrom impedanse naizmenične struje. Studija polarizacije otkriva da sistem tiouree funkcioniše kao anodni inhibitor. Spektri impedanse naizmenične struje otkrivaju da se na površini metala formira zaštitni film. Kada se kao armatura koristi meki čelik, tiourea se može mešati sa betonom. Tako će meki čelik biti zaštićen od korozije. Zaštitni film se sastoji od kompleksa gvožđe-tiourea formiranog na metalnoj površini. U prisustvu tiouree raste otpor linearne polarizacije, smanjuje se struja korozije, povećava otpor prenosa naelektrisanja (Rt), raste impedansa, povećava se fazni ugao i smanjuje se vrednost dvostojnog kapacitivnosti (Cdl). Ova formulacija može naći primenu u tehnologiji betona.

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2022-12-15

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God. 63 Br. 4 (2022)

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