Effect of repeated quenching heat treatment on microstructure and dry sliding wear behavior of low carbon PM steel
Küçük Resim Yok
Tarih
2007
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Trans Tech Publications Ltd
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
The effect of repeated quenching heat treatment on microstructure and dry sliding wear behavior of low carbon PM steel was investigated. For this purpose, atomized iron powder was mixed with 0.3 % graphite and 1 % Ni powders. The mixed powders were cold pressed and sintered at 1200°C for 30 min under pure Ar gas atmosphere. Some of the sintered specimens were intercritically annealed at 760°C and quenched in water (single quenching). The other sintered specimens were first fully austenized at 890°C and water quenched. These specimens were then intercritically annealed at 760°C and re-quenched in water. The martensite volume fraction in the double quenched specimens was higher than that of the single quenched specimen. Wear tests were carried out on the single and double quenched specimens under dry sliding wear condition using a pin-on-disk type machine at constant load and speed. The experimental results showed that the wear coefficient effectively decreased in the double quenched specimen.
Açıklama
Air Force Office ot Scientific Research (AFOSR/AOARD); Busan Convention and Visitors Bureau; Changsung Corporation; EHWA DIAMOND IND. CO. LTD.; et al.; GLOSCO. LTD.
2006 Powder Metallurgy World Congress and Exhibition, PM 2006 -- 24 September 2006 through 28 September 2006 -- Busan -- 71120
2006 Powder Metallurgy World Congress and Exhibition, PM 2006 -- 24 September 2006 through 28 September 2006 -- Busan -- 71120
Anahtar Kelimeler
Dry sliding wear, Intercritical annealing, Low carbon PM steels, Quenching
Kaynak
Materials Science Forum
WoS Q Değeri
Scopus Q Değeri
Q4
Cilt
534-536
Sayı
PART 1
