EFFECT OF PROCESSING ON THE HIGH TEMPERATURE LOW CYCLE FATIGUE PROPERTIES OF MODIFIED 9Cr‐1Mo FERRITIC STEEL

Fatigue and Fracture of Engineering Materials and Structures - Tập 7 Số 4 - Trang 299-314 - 1984
Günter Ebi1, A.J. McEvily2
1Max Planck Institut für Eisenforschung - DÜSSELDORF - West Germany
2Department of Metallurgy, University of Connecticut, Storrs, CT 06268, U.S.A.

Tóm tắt

The high temperature low cycle fatigue properties of modified 9Cr‐1Mo ferritic steel in a hot forged and a hot rolled condition have been evaluated. The hot forged material exhibited inferior fatigue properties as compared to the finer grained hot rolled material. Analysis of the data indicates that a larger grain size adversely affects the initiation stage but has little effect on the propagation stage. A steeper slope on the Coffin‐Manson plot results when the number of cycles to initiation is reduced.

Từ khóa


Tài liệu tham khảo

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Thông tin xuất bản

Fatigue and Fracture of Engineering Materials and Structures

Tập 7 Số 4

299-314

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