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Study of the hydrogen traps in a high strength TRIP steel by thermal desorption spectroscopy

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Abstract
Thermal desorption spectroscopy (TDS) is a very important tool in hydrogen related research. It allows to distinguish between the different types of microstructural hydrogen traps based on the analysis of the different temperatures at which hydrogen desorbs from the material during heating. These peak temperatures depend on the metallurgical and microstructural characteristics of the steel under investigation and provide important information on the possible mechanisms for hydrogen embrittlement (HE). In the present work, multiple TDS experiments and an in-depth study of the microstructure were performed on a TRIP steel (TRIP700) that was previously cold deformed in order to make a correlation between the microstructural features of this material, e.g. grain boundaries, dislocations, martensite formation and the peaks that became visible during TDS. The results obtained for the TRIP grade were compared with those obtained for electrolytic pure iron, which only contained a limited amount of possible trap sites such as grain boundaries and an increasing amount of dislocations due to previous application of cold deformation. Significant differences between both materials and a significant impact of the degree of cold deformation for TRIP steels were observed.
Keywords
hydrogen embrittlement, DIFFUSION, thermal desorption spectroscopy, high strength steel, activation energy, hydrogen traps

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Chicago
Perez Escobar, Diana Maria, L Duprez, Kim Verbeken, and Marc Verhaege. 2012. “Study of the Hydrogen Traps in a High Strength TRIP Steel by Thermal Desorption Spectroscopy.” In Materials Science Forum, 706-709:2253–2258. TRANS TECH PUBLICATIONS LTD.
APA
Perez Escobar, D. M., Duprez, L., Verbeken, K., & Verhaege, M. (2012). Study of the hydrogen traps in a high strength TRIP steel by thermal desorption spectroscopy. Materials Science Forum (Vol. 706–709, pp. 2253–2258). Presented at the 7th International Conference on Processing and Manufacturing of Advanced Materials, TRANS TECH PUBLICATIONS LTD.
Vancouver
1.
Perez Escobar DM, Duprez L, Verbeken K, Verhaege M. Study of the hydrogen traps in a high strength TRIP steel by thermal desorption spectroscopy. Materials Science Forum. TRANS TECH PUBLICATIONS LTD; 2012. p. 2253–8.
MLA
Perez Escobar, Diana Maria, L Duprez, Kim Verbeken, et al. “Study of the Hydrogen Traps in a High Strength TRIP Steel by Thermal Desorption Spectroscopy.” Materials Science Forum. Vol. 706–709. TRANS TECH PUBLICATIONS LTD, 2012. 2253–2258. Print.
@inproceedings{4250406,
  abstract     = {Thermal desorption spectroscopy (TDS) is a very important tool in hydrogen related research. It allows to distinguish between the different types of microstructural hydrogen traps based on the analysis of the different temperatures at which hydrogen desorbs from the material during heating. These peak temperatures depend on the metallurgical and microstructural characteristics of the steel under investigation and provide important information on the possible mechanisms for hydrogen embrittlement (HE). In the present work, multiple TDS experiments and an in-depth study of the microstructure were performed on a TRIP steel (TRIP700) that was previously cold deformed in order to make a correlation between the microstructural features of this material, e.g. grain boundaries, dislocations, martensite formation and the peaks that became visible during TDS. The results obtained for the TRIP grade were compared with those obtained for electrolytic pure iron, which only contained a limited amount of possible trap sites such as grain boundaries and an increasing amount of dislocations due to previous application of cold deformation. Significant differences between both materials and a significant impact of the degree of cold deformation for TRIP steels were observed.},
  author       = {Perez Escobar, Diana Maria and Duprez, L and Verbeken, Kim and Verhaege, Marc},
  booktitle    = {Materials Science Forum},
  issn         = {0255-5476},
  keyword      = {hydrogen embrittlement,DIFFUSION,thermal desorption spectroscopy,high strength steel,activation energy,hydrogen traps},
  language     = {eng},
  location     = {Quebec City, CANADA},
  pages        = {2253--2258},
  publisher    = {TRANS TECH PUBLICATIONS LTD},
  title        = {Study of the hydrogen traps in a high strength TRIP steel by thermal desorption spectroscopy},
  url          = {http://dx.doi.org/10.4028/www.scientific.net/MSF.706-709.2253},
  volume       = {706-709},
  year         = {2012},
}

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