Strain Hardening and Fracture Behavior during Tension of Directionally Solidified High-Nitrogen Austenitic Steel

Strain Hardening and Fracture Behavior during Tension of Directionally Solidified High-Nitrogen Austenitic Steel

Bibliographic Details
Parent link:AIP Conference Proceedings
Vol. 1909 : Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2017 (AMHS’17).— 2017.— [020128, 4 p.]
Corporate Author: Национальный исследовательский Томский политехнический университет (ТПУ)
Other Authors: Maier G. Galina, Astafurova E. Elena, Melnikov E. Eugene, Moskvina V. Valentina, Galchenko N. Nina
Summary:Title screen
The effect of grain orientation relative to tensile load on the strain hardening behavior and fracture mechanism of directionally solidified high-nitrogen steel Fe-20Cr-22Mn-1.5V-0.2C-0.6N (in wt %) was studied. The tensile samples oriented along the longitudinal direction of columnar grains demonstrated the improved mechanical properties compared to specimens with the transversal directions of columnar grains: the values of tensile strength and strain-to-fracture were as high as 1080 MPa and 22%, respectively, for tension along the columnar grains and 870 MPa and 11%, respectively, for the tension transversal to the columnar grains. The change in the grain orientation relative to the tensile load varies a fracture mode of the steel. The fraction of the transgranular fracture was higher in the samples with longitudinal directions of the columnar grains compared to the transversal ones.
Режим доступа: по договору с организацией-держателем ресурса
Published: 2017
Subjects:
электронный ресурс
труды учёных ТПУ
деформации
разрушения
растяжения
аустенитные стали
азот
деформационное упрочнение
materials properties
austenitic steels
Online Access:https://doi.org/10.1063/1.5013809
Format: Electronic Book Chapter
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=657146

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