Detail publikace

Analysis of Acoustic Emission Signals during Tensile Deformation of Fe-Si Steels with Various Silicon Contents

KHAN, S. CHIVAVIBUL, P. SEDLÁK, P. ARAI, S. ENOKI, M.

Originální název

Analysis of Acoustic Emission Signals during Tensile Deformation of Fe-Si Steels with Various Silicon Contents

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

A systematic investigation was performed on the deformation mechanism of Fe-Si steels with various silicon contents (2, 3, and 4.5 wt pct Si) by analyzing frequency distribution of acoustic emission (AE) coupling with fracture surface observation. AE signals were recorded during tensile tests at room temperature (RT) and at an elevated temperature of (473 K) 200C. The results showed that both yield strength and tensile strength of Fe-Si steels increased with increasing silicon contents, whereas failure strain decreased. Increasing silicon content also increased the brittle fracture mode of the steels, especially at RT. In contrast, all specimens failed by ductile fracture mode at 473 K (200C). Frequency analysis showed that AE signals generated during tensile deformation were mainly distributed into two ranges, i.e., low (250 to 550 kHz) and high (550 to 750 kHz) frequency ranges. These generated AE signals were correlated with various types of observed deformation mechanisms. The low and high frequency signals corresponded to breaking and/or debonding of inclusions and twinning/cleavage fracture.

Klíčová slova

Acoustic emission signal; Deformation mechanism; Elevated temperature; Frequency Analysis; Frequency distributions; Low and high frequencies; Systematic investigations; Tensile deformation

Autoři

KHAN, S.; CHIVAVIBUL, P.; SEDLÁK, P.; ARAI, S.; ENOKI, M.

Rok RIV

2013

Vydáno

1. 8. 2013

Nakladatel

Springer

ISSN

1073-5623

Periodikum

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE

Ročník

44

Číslo

8

Stát

Spojené státy americké

Strany od

3623

Strany do

3634

Strany počet

12

BibTex

@article{BUT101808,
  author="Sabrina A. {Khan} and Pornthep {Chivavibul} and Petr {Sedlák} and Satoshi {Arai} and Manabu {Enoki}",
  title="Analysis of Acoustic Emission Signals during Tensile Deformation of Fe-Si Steels with Various Silicon Contents",
  journal="METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE",
  year="2013",
  volume="44",
  number="8",
  pages="3623--3634",
  doi="10.1007/s11661-013-1729-4",
  issn="1073-5623"
}