scholarly journals Use of Strain-Range Partitioning for Predicting Time-Dependent, Strain-Controlled Cyclic Lifetimes of Uniaxial Specimens of 2 1/4 Cr-1 Mo Steel, Type 316 Stainless Steel, and Hastelloy X

1978 ◽  
Author(s):  
C. R. Brinkman ◽  
J. P. Strizak ◽  
M. K. Booker
Keyword(s):  
Stainless Steel ◽  
Strain Range ◽  
Time Dependent ◽  
Hastelloy X ◽  
Steel Type ◽  
316 Stainless Steel ◽  
Dependent Strain

Time Dependence in Biaxial Yield of Type 316 Stainless Steel at Room Temperature

1983 ◽  
Vol 105 (4) ◽  
pp. 250-256 ◽  
Author(s):  
J. R. Ellis ◽  
D. N. Robinson ◽  
C. E. Pugh
Keyword(s):  
Stainless Steel ◽  
Room Temperature ◽  
Transient Flow ◽  
Time Dependent ◽  
Time Data ◽  
Yield Behavior ◽  
316 Stainless Steel ◽  
Hardening Behavior ◽  
Initial Yield ◽  
Yield Surfaces

This paper describes two biaxial experiments which investigated time and rate effects in the yield and deformation behavior of type 316 stainless steel at room temperature. The first experiment was aimed at determining the effect of probing rate on small-offset yield behavior. The primary aim of the second experiment was to investigate time-dependent flow after loading beyond initial yield. An additional aim was to investigate the effect of radial (3 σ12 = σ11) and nonradial preloads on the yield and hardening behavior. The first experiment showed that for the limited range investigated, 100 to 500 με/min, the probing rate had little effect on yield behavior. The small differences observed in the size and position of certain yield surfaces were shown to be related to the sequence in which the yield loci were determined. The second experiment showed that yield surfaces suffered considerable distortion from their initial near-circular form after both radial and nonradial preloads beyond initial yield. It also showed that the hardening behavior was predominantly kinematic for both types of preload. The strain-time data obtained after the preloads in this experiment showed characteristics typical of creep curves. A transient flow period was observed with high initial strain rates diminishing one or two orders of magnitude during the 0.5-h hold periods. This means that in detailed mechanical modeling of this material, careful attention should be given to time-dependent effects, even at room temperature.

Mean Stress Effect on Fatigue Properties of Type 316 Stainless Steel: Part II — In PWR Primary Water Environment

2017 ◽  
Author(s):  
Masayuki Kamaya
Keyword(s):  
Stainless Steel ◽  
Fatigue Life ◽  
Effective Strain ◽  
Strain Range ◽  
Stress Effect ◽  
Mean Stress ◽  
316 Stainless Steel ◽  
Mean Stress Effect ◽  
Primary Water ◽  
The Mean

The mean stress effect on the fatigue life of Type 316 stainless steel was investigated at 325°C in simulated PWR primary water. It was shown that, as shown in high-temperature air environment, the fatigue life was extended by applying the mean stress under the same stress amplitude. An increase in the maximum peak stress by applying the mean stress induced additional plastic strain and this hardened the material. On the other hand, the fatigue life was shortened by the mean stress for the same strain range. The ratcheting strain caused by applying mean stress accelerated crack mouth opening and reduced fatigue life. It was also shown that the fatigue life in the simulated PWR primary water was shorter than that in air even without the mean stress. The magnitude of the reduction depended on the strain range. The reduction in fatigue life was the maximum when the strain range was 0.6%. The environmental effect disappeared when the effective strain was less than 0.4%.

Stress-Rupture of Metals Under Increasing Stress

1965 ◽  
Vol 87 (4) ◽  
pp. 875-878 ◽  
Author(s):  
G. H. Rowe ◽  
H. R. Meck
Keyword(s):  
Stainless Steel ◽  
High Temperature ◽  
Rupture Life ◽  
Stress Rupture ◽  
Hastelloy X ◽  
316 Stainless Steel ◽  
High Temperature Alloys

The prediction of rupture life of several high temperature alloys (Hastelloy X, Type 316 stainless steel, Cb-1 Zr) was investigated analytically and experimentally for the case of linearly increasing stress.

Effects of Chloride, Bromide, and Thiosulfate Ions on the Critical Conditions for Crevice Corrosion of Several Stainless Alloys as a Material for Geological Disposal Packages for Nuclear Waste

1992 ◽  
Vol 294 ◽  
Author(s):  
Guen Nakayama ◽  
Hisao Wakamatsu ◽  
Masatsune Akashi
Keyword(s):  
Stainless Steel ◽  
Nuclear Waste ◽  
Crevice Corrosion ◽  
304 Stainless Steel ◽  
Critical Conditions ◽  
Geological Disposal ◽  
Steel Type ◽  
316 Stainless Steel ◽  
Type 304 ◽  
Type 304 Stainless Steel

ABSTRACTIn addition to mild steel, several stainless alloys are being proposed as materials for packages for geological disposal of high-level nuclear waste. When buried deep underground, the greatest detriment to the integrity of packages made of these alloys is localized corrosion, for which critical conditions for initiation of crevice corrosion in chloride environments, with or without other ions, need be precisely known.Crevice corrosion behavior of Type 304 stainless steel, Type 316 stainless steel, Alloy 825, Ti-Gr.1, and Ti-Gr.12 in solutions containing ions of chloride, bromide (these two for their ordinary presence in natural waters), or thiosulphate (this for the likelihood of microbially influenced corrosion) to varying concentrations have been empirically examined. All of these alloys exhibit much the same concentration dependency of crevice corrosion sensitivity for chloride and bromide ions, while Type 304 stainless steel is particularly sensitive to the thiosulphate ion. The region of insensitivity for chloride ion is wider in the increasing order of Type 304 stainless steel, Type 316 stainless steel, Ti-Gr. 1, and Ti-Gr. 12, with that of Alloy 825 lying somewhere in between.

Sign in / Sign up

Export Citation Format

Share Document