Department of Business Development and Technology

Diego Pacheco

Nondestructive analysis of corrosion in ageing hardened AA6351 aluminium alloys

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  • Erick Cerqueira das Neves, SENAI
  • ,
  • Ezer Guimarães do Nascimento, Universidade Federal de Sergipe
  • ,
  • Daiana Guerra Sacilotto, Universidade Federal do Rio Grande do Sul
  • ,
  • Jane Zoppas Ferreira, Universidade Federal do Rio Grande do Sul
  • ,
  • Jorge Luis Braz Medeiros, Fundacao Universidade Federal do Rio Grande
  • ,
  • Luciano Volcanoglo Biehl, Fundacao Universidade Federal do Rio Grande
  • ,
  • Guilherme Vieira Braga Lemos, Universidade Federal de Santa Maria
  • ,
  • Carlos Otávio Damas Martins, Universidade Federal de Sergipe
  • ,
  • Diego Augusto de Jesus Pacheco

Aluminum alloys have been chosen over other lightweight structural materials because of their advantages regarding strength, long-term durability, and low cost. Aluminum comes under the category of highly reactive metals, where an inherently stable oxide layer can protect against aggressive corrosive conditions. Therefore, this research investigated the application of the ultrasonic nondestructive technique for inspection and monitoring of corrosion behavior of AA6351 heat-treated aluminum alloys. The samples were artificial age hardened at five different conditions. The complementary engineering experiments for materials evaluation included hardness, X-ray diffraction and salt spray tests. Overall findings showed correlations between ultrasonic and destructive data representing a fast, versatile and reliable inspection technique. Furthermore, findings show a significant correlation (>99%), thus supporting the benefits of the multiparametric ultrasonic test for heat treatment inspection and quality control of lightweight structural materials.

Original languageEnglish
Article number126664
JournalMaterials Chemistry and Physics
Number of pages8
Publication statusPublished - Nov 2022

    Research areas

  • AA6351, Aluminum alloys, Artificial ageing, Corrosion, Corrosion behavior, Lightweight materials, Manufacturing process, Materials characterization, Nondestructive tests, Ultrasonic inspection

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