Fatigue strength of ferritic ductile cast iron hardened by super rapid induction heating and quenching

Yoshitaka Misaka, Kazuhiro Kawasaki, Jun Komotori, Masao Shimizu

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

To clarify the effects of Super Rapid Induction Heating and Quenching (SRIHQ) on fatigue properties of Ferrite Ductile Cast Iron (FDI), rotational bending fatigue tests were carried out on specimens treated with four types of heating cycle. Results showed that; (i) the SRIHQ process generated a thin dark gray area around the graphite. This dark area was composed of a martensite structure (ringed martensite). (ii) The ringed martensite generated a compressive residual stress field at the surface hardened layer. Two types of compressive residual stress generative mechanisms were observed. One was a microscopic residual stress generative process due to the formation of ringed martensite and the other was a macroscopic residual stress generative process due to the expansion of the surface hardened layer. (iii) The fatigue strength of SRIHQ treated FDI specimen was higher than that of the untreated one. This was because the compressive residual stress field generated by the ringed martensite suppressed initiation and propagation of fatigue cracks.

Original languageEnglish
Pages (from-to)2930-2935
Number of pages6
JournalMaterials Transactions
Volume45
Issue number9
Publication statusPublished - 2004 Sep

Fingerprint

induction heating
Induction heating
martensite
Cast iron
Martensite
residual stress
casts
Quenching
Residual stresses
quenching
iron
Compressive stress
stress distribution
Ferrite
ferrites
surface layers
Fatigue of materials
bending fatigue
fatigue tests
Graphite

Keywords

  • Ferritic ductile cast iron
  • Fracture mechanism
  • Rotational bending fatigue
  • Super-rapid induction heating and quenching

ASJC Scopus subject areas

  • Materials Science(all)
  • Metals and Alloys

Cite this

Fatigue strength of ferritic ductile cast iron hardened by super rapid induction heating and quenching. / Misaka, Yoshitaka; Kawasaki, Kazuhiro; Komotori, Jun; Shimizu, Masao.

In: Materials Transactions, Vol. 45, No. 9, 09.2004, p. 2930-2935.

Research output: Contribution to journalArticle

Misaka, Yoshitaka ; Kawasaki, Kazuhiro ; Komotori, Jun ; Shimizu, Masao. / Fatigue strength of ferritic ductile cast iron hardened by super rapid induction heating and quenching. In: Materials Transactions. 2004 ; Vol. 45, No. 9. pp. 2930-2935.
@article{467673c70449464f82a3a940a26316b6,
title = "Fatigue strength of ferritic ductile cast iron hardened by super rapid induction heating and quenching",
abstract = "To clarify the effects of Super Rapid Induction Heating and Quenching (SRIHQ) on fatigue properties of Ferrite Ductile Cast Iron (FDI), rotational bending fatigue tests were carried out on specimens treated with four types of heating cycle. Results showed that; (i) the SRIHQ process generated a thin dark gray area around the graphite. This dark area was composed of a martensite structure (ringed martensite). (ii) The ringed martensite generated a compressive residual stress field at the surface hardened layer. Two types of compressive residual stress generative mechanisms were observed. One was a microscopic residual stress generative process due to the formation of ringed martensite and the other was a macroscopic residual stress generative process due to the expansion of the surface hardened layer. (iii) The fatigue strength of SRIHQ treated FDI specimen was higher than that of the untreated one. This was because the compressive residual stress field generated by the ringed martensite suppressed initiation and propagation of fatigue cracks.",
keywords = "Ferritic ductile cast iron, Fracture mechanism, Rotational bending fatigue, Super-rapid induction heating and quenching",
author = "Yoshitaka Misaka and Kazuhiro Kawasaki and Jun Komotori and Masao Shimizu",
year = "2004",
month = "9",
language = "English",
volume = "45",
pages = "2930--2935",
journal = "Materials Transactions",
issn = "1345-9678",
publisher = "Japan Institute of Metals (JIM)",
number = "9",

}

TY - JOUR

T1 - Fatigue strength of ferritic ductile cast iron hardened by super rapid induction heating and quenching

AU - Misaka, Yoshitaka

AU - Kawasaki, Kazuhiro

AU - Komotori, Jun

AU - Shimizu, Masao

PY - 2004/9

Y1 - 2004/9

N2 - To clarify the effects of Super Rapid Induction Heating and Quenching (SRIHQ) on fatigue properties of Ferrite Ductile Cast Iron (FDI), rotational bending fatigue tests were carried out on specimens treated with four types of heating cycle. Results showed that; (i) the SRIHQ process generated a thin dark gray area around the graphite. This dark area was composed of a martensite structure (ringed martensite). (ii) The ringed martensite generated a compressive residual stress field at the surface hardened layer. Two types of compressive residual stress generative mechanisms were observed. One was a microscopic residual stress generative process due to the formation of ringed martensite and the other was a macroscopic residual stress generative process due to the expansion of the surface hardened layer. (iii) The fatigue strength of SRIHQ treated FDI specimen was higher than that of the untreated one. This was because the compressive residual stress field generated by the ringed martensite suppressed initiation and propagation of fatigue cracks.

AB - To clarify the effects of Super Rapid Induction Heating and Quenching (SRIHQ) on fatigue properties of Ferrite Ductile Cast Iron (FDI), rotational bending fatigue tests were carried out on specimens treated with four types of heating cycle. Results showed that; (i) the SRIHQ process generated a thin dark gray area around the graphite. This dark area was composed of a martensite structure (ringed martensite). (ii) The ringed martensite generated a compressive residual stress field at the surface hardened layer. Two types of compressive residual stress generative mechanisms were observed. One was a microscopic residual stress generative process due to the formation of ringed martensite and the other was a macroscopic residual stress generative process due to the expansion of the surface hardened layer. (iii) The fatigue strength of SRIHQ treated FDI specimen was higher than that of the untreated one. This was because the compressive residual stress field generated by the ringed martensite suppressed initiation and propagation of fatigue cracks.

KW - Ferritic ductile cast iron

KW - Fracture mechanism

KW - Rotational bending fatigue

KW - Super-rapid induction heating and quenching

UR - http://www.scopus.com/inward/record.url?scp=9144230838&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=9144230838&partnerID=8YFLogxK

M3 - Article

VL - 45

SP - 2930

EP - 2935

JO - Materials Transactions

JF - Materials Transactions

SN - 1345-9678

IS - 9

ER -