High cycle fatigue life improvement of polycrystalline alpha-iron modified by silver, chromium, aluminium, and yttrium ion implantation

HCF tests on polycrystalline alpha-iron with and without silver, chromium, yttrium, and aluminum ion implantation have been conducted. The stress-life curves obtained were best fit by using the power function. It was shown that the fatigue property had been improved to different extent after ion imp...

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Bibliographic Details
Published inScripta metallurgica et materialia Vol. 32; no. 12; pp. 2001 - 2007
Main Authors Wang, Hong W., Yang, D.Z., Shi, W.D., Patu, S.
Format Journal Article
LanguageEnglish
Published Seoul Elsevier B.V 15.06.1995
Oxford Pergamon Press
New York, NY
Subjects
Applied sciences
Cross-disciplinary physics: materials science; rheology
Exact sciences and technology
Fatigue, corrosion fatigue, embrittlement, cracking, fracture and failure
Fatigue, embrittlement, and fracture
Materials science
Metals. Metallurgy
Physics
Treatment of materials and its effects on microstructure and properties
Fatigue life
Ion implantation
Mechanical properties
Fatigue
Chromium additions
Silver additions
Experimental study
AES
Transition elements
S-N diagram
Aluminium additions
Iron-alpha
Yttrium additions
Chemical composition
SEM
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Summary:HCF tests on polycrystalline alpha-iron with and without silver, chromium, yttrium, and aluminum ion implantation have been conducted. The stress-life curves obtained were best fit by using the power function. It was shown that the fatigue property had been improved to different extent after ion implantation. Enhanced strengthening of the implanted layer due to radiation induced defects, super solid solution, and formation of intermetallic compounds in implantation was the prominent mechanism for property improvement.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0956-716X
DOI:10.1016/0956-716X(95)00094-C