Deformation behavior and internal stress of icosahedral Al-Pd-Mn with decagonal phase lamellae at elevated temperatures

H. Hirai, T. Tomita, F. Yoshida, H. Nakashima

Research output: Contribution to journalConference article

1 Citation (Scopus)

Abstract

Fine decagonal phase lamellae-bearing icosahedral Al-Pd-Mn quasicrystals were tested compressionally at temperatures of 997 to 1073 K and initial strain rate of 3 × 10-5 to 1 × 10-4 s-1, and stress relaxation tests were performed at various stages of deformation. The results confirmed the thermally activated nature of deformation, and the stress exponent of strain rate was around 4. Internal stress for deformation estimated by Kikuchi's method reached 50 to 90% of applied stress. The effective stress exponent of strain rate was revealed to be about 1.3. At least a part of high internal stress was attributable to complicated dislocation microstructure.

Original languageEnglish
Pages (from-to)331-336
Number of pages6
JournalMaterials Research Society Symposium - Proceedings
Volume553
Publication statusPublished - Jan 1 1999
EventProceedings of the 1998 MRS Fall Meeting - The Symposium 'Advanced Catalytic Materials-1998' - Boston, MA, USA
Duration: Nov 30 1998Dec 3 1998

Fingerprint

lamella
strain rate
residual stress
Strain rate
Residual stresses
Bearings (structural)
exponents
Quasicrystals
stress relaxation
Stress relaxation
Temperature
temperature
microstructure
Microstructure

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Deformation behavior and internal stress of icosahedral Al-Pd-Mn with decagonal phase lamellae at elevated temperatures. / Hirai, H.; Tomita, T.; Yoshida, F.; Nakashima, H.

In: Materials Research Society Symposium - Proceedings, Vol. 553, 01.01.1999, p. 331-336.

Research output: Contribution to journalConference article

@article{059b480c768342a2a0abe988f6632b6c,
title = "Deformation behavior and internal stress of icosahedral Al-Pd-Mn with decagonal phase lamellae at elevated temperatures",
abstract = "Fine decagonal phase lamellae-bearing icosahedral Al-Pd-Mn quasicrystals were tested compressionally at temperatures of 997 to 1073 K and initial strain rate of 3 × 10-5 to 1 × 10-4 s-1, and stress relaxation tests were performed at various stages of deformation. The results confirmed the thermally activated nature of deformation, and the stress exponent of strain rate was around 4. Internal stress for deformation estimated by Kikuchi's method reached 50 to 90{\%} of applied stress. The effective stress exponent of strain rate was revealed to be about 1.3. At least a part of high internal stress was attributable to complicated dislocation microstructure.",
author = "H. Hirai and T. Tomita and F. Yoshida and H. Nakashima",
year = "1999",
month = "1",
day = "1",
language = "English",
volume = "553",
pages = "331--336",
journal = "Materials Research Society Symposium - Proceedings",
issn = "0272-9172",
publisher = "Materials Research Society",

}

TY - JOUR

T1 - Deformation behavior and internal stress of icosahedral Al-Pd-Mn with decagonal phase lamellae at elevated temperatures

AU - Hirai, H.

AU - Tomita, T.

AU - Yoshida, F.

AU - Nakashima, H.

PY - 1999/1/1

Y1 - 1999/1/1

N2 - Fine decagonal phase lamellae-bearing icosahedral Al-Pd-Mn quasicrystals were tested compressionally at temperatures of 997 to 1073 K and initial strain rate of 3 × 10-5 to 1 × 10-4 s-1, and stress relaxation tests were performed at various stages of deformation. The results confirmed the thermally activated nature of deformation, and the stress exponent of strain rate was around 4. Internal stress for deformation estimated by Kikuchi's method reached 50 to 90% of applied stress. The effective stress exponent of strain rate was revealed to be about 1.3. At least a part of high internal stress was attributable to complicated dislocation microstructure.

AB - Fine decagonal phase lamellae-bearing icosahedral Al-Pd-Mn quasicrystals were tested compressionally at temperatures of 997 to 1073 K and initial strain rate of 3 × 10-5 to 1 × 10-4 s-1, and stress relaxation tests were performed at various stages of deformation. The results confirmed the thermally activated nature of deformation, and the stress exponent of strain rate was around 4. Internal stress for deformation estimated by Kikuchi's method reached 50 to 90% of applied stress. The effective stress exponent of strain rate was revealed to be about 1.3. At least a part of high internal stress was attributable to complicated dislocation microstructure.

UR - http://www.scopus.com/inward/record.url?scp=0032591001&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0032591001&partnerID=8YFLogxK

M3 - Conference article

AN - SCOPUS:0032591001

VL - 553

SP - 331

EP - 336

JO - Materials Research Society Symposium - Proceedings

JF - Materials Research Society Symposium - Proceedings

SN - 0272-9172

ER -