Abstract
Temperature dependences of tensile strength σB and cyclic tensile fatigue strength for bcc and fcc Fe at high temperature in vacuum have been studied. The results obtained are as follows:(1) Relations between σB and testing temperature T except for the range of 900∼1000°C are given by(This article is not displayable. Please see full text pdf.) \ oindentwhere \barσB, β and T0 are 177.3 MPa, −4.48×10−6°C−2 and 100°C for bcc Fe, and 13.2 MPa, −5.80×10−6°C−2 and 910°C for fcc Fe.(2) Relations between fatigue life N and maximum value σ0 of cyclic tensile stress are given by(This article is not displayable. Please see full text pdf.) \ oindentwhere N0 and B are 80 and 13 for bcc Fe, and 500 and 9 for fcc Fe.
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