La Roca, Paulo Matías

Profile Picture

Email Address

person.page.identifierURI

https://academica-e.unavarra.es/handle/2454/49361

Birth Date

Job Title

Last Name

La Roca

First Name

Paulo Matías

person.page.departamento

Ciencias

person.page.instituteName

InaMat2. Instituto de Investigación en Materiales Avanzados y Matemáticas

ORCID

0000-0003-0856-6052

person.page.observainves

750626

person.page.upna

812003

Name

Filters

20211
Reset filters

Settings

Subject: Austenite ×

Search Results

Now showing 1 - 1 of 1
  • Thumbnail Image
    PublicationOpen Access
    Alternative thermal cycling treatment to produce abnormal grain growth in feMnAlNi alloys: study of composition variations and effects on the relative phase stabilities
    (Springer, 2021) La Roca, Paulo Matías; Guerrero, L.M.; Baruj, A.; Vallejos, J. M.; Sade, M.; Institute for Advanced Materials and Mathematics - INAMAT2
    An alternative method to obtain abnormal grain growth in Fe–Mn–Al–Ni system is presented. A crucible is used to control the cooling speed of the samples from 1200 °C enabling the nucleation of the equilibrium fcc phase. This fcc structure leads to an abnormal grain growth after heating to 1200 °C, temperature at which the bcc phase is stable. In this way, crystals with a mean diameter of 18 mm are obtained after 4 thermal cycles which take approximately 2 h. Additionally, precise composition measurements using neutron activation allowed the detection of a decrease in Mn content after each thermal cycle. Using electrical resistivity measurements, the effect of the variation of Mn content on the relative phase stability between the bcc austenite and the fcc martensite has been observed and is discussed here.