ISSN:
1460-2695
Source:
Blackwell Publishing Journal Backfiles 1879-2005
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Experimental data on tensile and compact geometry (CT) specimens of austenitic Type 316L(N) steel were obtained under sustained load conditions at room temperature. Time-dependent crack growth, in some cases leading to failure, occurred in many of the CT specimens, dependent on the load level. However, rupture of the uniaxial specimens occurred only at stresses very close to the material's ultimate strength. The data validate the approach to assessing sustained loading effects in the R6 defect assessment procedure. In particular, sustained load effects in austenitic steel may be neglected for values of the R6 Lr parameter less than unity. Uniaxial sustained load tests were also performed at 100 °C and 200 °C. The measured strain rates decreased with increasing temperature, becoming negligible at 200 °C. This is consistent with the advice in R6 that sustained load effects in austenitic steel can be neglected at temperatures between 200 °C and the high-temperature creep range.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1111/j.1460-2695.2005.00914.x
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