Corrosion resistance of industrial pure titanium and its alloys under high temperature and different cooling methods

Cangtian Wang, Qinglong Meng, Fanghao Chen, Jinghong Wang, Youran Zhi, Zhirong Wang

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

Industrial pure titanium (TA2) and Ti-6Al-4V (TC4) have been widely available for chemical equipment. However, the corrosion resistance changes during their post-fire performance. In this research, the electrochemical properties of industrial pure titanium and Ti-6Al-4V after heat treatment and different cooling methods were analyzed by AC impedance technique and dynamic polarization method. The results support two conclusions. Firstly, when the temperature is approximate to the phase transition point, for pure titanium and its alloys, water-cooling can obtain better corrosion resistance than air-cooling. With regard to pure titanium, its best corrosion resistance can be obtained at 800℃ under water-cooling. For Ti-6Al-4V, its best corrosion resistance can be obtained when the temperature reached 910 °C under water cooling condition. Secondly, the corrosion current density under acid corrosion condition has risen compared with neutral corrosion condition. These results can provide some experimental data and theoretical basis for post-fire anticorrosion performance of titanium materials, and also support the safety, risk evaluation of titanium equipment.

Original languageEnglish
Title of host publicationMaterials Science and Technologies
EditorsZong Jin Li
PublisherTrans Tech Publications Ltd
Pages3-9
Number of pages7
ISBN (Print)9783035717891
StatePublished - 2021
Event1st International Conference on Systems Modelling and Management, ICSMM 2020, 8th International Conference on Nanomaterials and Materials Engineering, ICNME 2020 and 9th International Conference on Nano and Materials Science, ICNMS 2021 - Virtual, Online
Duration: 26 Jan 202129 Jan 2021

Publication series

NameKey Engineering Materials
Volume891 KEM
ISSN (Print)1013-9826
ISSN (Electronic)1662-9795

Conference

Conference1st International Conference on Systems Modelling and Management, ICSMM 2020, 8th International Conference on Nanomaterials and Materials Engineering, ICNME 2020 and 9th International Conference on Nano and Materials Science, ICNMS 2021
CityVirtual, Online
Period26/01/2129/01/21

Keywords

  • Cooling type
  • Corrosion resistance
  • Heat treatment
  • Pure titanium
  • Ti-6Al-4V

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