Publication detail

ELASTIC-PLASTIC BEHAVIOUR OF ADVANCED ADI STUDIED BY IN-SITU SEM TENSILE TEST

PETRENEC, M. TESAŘOVÁ, H. KRAHULA, K. POLÁK, J.

Original Title

ELASTIC-PLASTIC BEHAVIOUR OF ADVANCED ADI STUDIED BY IN-SITU SEM TENSILE TEST

Type

conference paper

Language

English

Original Abstract

In-situ SEM tensile tests at room temperature have been performed on flat specimen of advanced austempered ductile cast iron (ADI) alloyed with nickel with the aim to study elastic-plastic behavior together with the nucleation and growth of cracks. During tensile loading the systematic observation of selected locations was studied. The in-situ observation was used to elucidate the tensile curves in agreement with the deformation mechanisms. In the early stage of loading the stress-strain response is elastic. After exceeding elastic limit decohesion of graphite nodules from the matrix was observed. It can be related to the departure of the tensile curve from the elastic behavior. The cracks initiated preferably from interface of graphite nodule and the ausferrite matrix. Elastic-plastic region is connected with the plastic deformation of the matrix and growth and linking of short cracks. The tensile curves from in-situ stage and standard tensile test were compared and discussed.

Keywords

ADI with nickel alloying, in-situ tensile test; mechanical properties, deformation mechanisms, SEM-FEG

Authors

PETRENEC, M.; TESAŘOVÁ, H.; KRAHULA, K.; POLÁK, J.

RIV year

2013

Released

10. 5. 2013

Publisher

TANGER Ltd.

Location

Brno

ISBN

978-80-87294-39-0

Book

Metal 2013

Pages from

676

Pages to

681

Pages count

6

BibTex

@inproceedings{BUT108944,
  author="Martin {Petrenec} and Hana {Tesařová} and Karel {Krahula} and Jaroslav {Polák}",
  title="ELASTIC-PLASTIC BEHAVIOUR OF ADVANCED ADI STUDIED BY IN-SITU SEM TENSILE TEST",
  booktitle="Metal 2013",
  year="2013",
  pages="676--681",
  publisher="TANGER Ltd.",
  address="Brno",
  isbn="978-80-87294-39-0"
}