Influence of Cold Work on the Irradiation Creep and Creep Rupture of Titanium Modified Austenitic Stainless Steel

The creep properties for SUS 316 HTB austenitic stainless steel were evaluated by using the small-punch creep test at 650 °C for loads of 234, 286, 338, 408, and 478 N and at 700 °C for loads of 199 and 234 N. The creep curves, determined by means of the small-punch creep test, were similar to those obtained from a conventional uniaxial creep test. That is, they exhibited clearly the three creep stages. The width of secondary creep stage and rupture time tr decreased with the increase in testing load level. The creep rupture strength for the service-exposed material was lower than that of the as-received material at high testing loads. However, the creep resistance behavior was opposite at relatively low load levels. This difference in creep resistance was explained on the basis of the difference in the creep deformation and microstructural evolution during tests. It was also found that the ratio between the load of small-punch creep test and the stress of uniaxial creep test was about 1 for having the same value of creep rupture life.

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On Time-Temperature Parameters for Correlation of Creep-Rupture Data in Stainless Steel Weldments

Journal of Engineering Materials and Technology ◽

10.1115/1.3443497 ◽

1978 ◽

Vol 100 (3) ◽

pp. 319-332 ◽

Cited By ~ 7

Author(s):

W. E. White ◽

Iain Le May

Keyword(s):

Stainless Steel ◽

Austenitic Stainless Steel ◽

Creep Rate ◽

Creep Rupture ◽

Rupture Time ◽

Function Approach ◽

Secondary Creep ◽

Rupture Data ◽

The Relationship ◽

Secondary Creep Rate

The Manson-Haferd, Larson-Miller, and Orr-Sherby-Dorn time-temperature parameters were applied to creep-rupture data obtained from testing two batches of austenitic stainless steel weldments. It was found that none of these correlated the data satisfactorily. A new parameter, based on a modification of one proposed originally by Manson and by Goldhoff and Sherby, was found to adequately correlate the data. The Minimum-Commitment, Station-Function Approach of Manson and Ensign was also applied, the results of which supported those obtained from the analysis made using the parameters listed above. Finally, from the relationship between rupture-time and secondary creep-rate, it is suggested that the form of the rupture data may be useful in predicting the physical basis for creep.

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Material Parameters for Creep Rupture of Austenitic Stainless Steel Foils

Journal of Materials Engineering and Performance ◽

10.1007/s11665-014-1070-0 ◽

2014 ◽

Vol 23 (8) ◽

pp. 2858-2863 ◽

Cited By ~ 5

Author(s):

H. Osman ◽

A. Borhana ◽

M. N. Tamin

Keyword(s):

Stainless Steel ◽

Austenitic Stainless Steel ◽

Creep Rupture ◽

Material Parameters ◽

Stainless Steel Foils ◽

Steel Foils

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Effect of Cold Work on Stress Corrosion of Type 309 Austenitic Stainless Steel

CORROSION ◽

10.5006/0010-9312-22.1.21 ◽

1966 ◽

Vol 22 (1) ◽

pp. 21-22 ◽

Cited By ~ 2

Author(s):

E. R. BURKART ◽

J. R. MYERS ◽

R. K. SAXER

Keyword(s):

Stainless Steel ◽

Austenitic Stainless Steel ◽

Stress Corrosion ◽

Cold Work

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On the Creep-Rupture Strength of Notched Specimens of 18-8 Austenitic Stainless Steel

journal of the Japan Society for Testing Materials ◽

10.2472/jsms1952.11.492 ◽

1962 ◽

Vol 11 (107) ◽

pp. 492-498

Author(s):

Hisashi IZUMI ◽

Tadashi KAWASAKI ◽

Tadakazu SAKURAI ◽

Gunji SHINODA ◽

Tadao SANO

Keyword(s):

Stainless Steel ◽

Austenitic Stainless Steel ◽

Rupture Strength ◽

Creep Rupture ◽

Creep Rupture Strength ◽

Notched Specimens

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Determination of Ratio of Yield Strength and Reduced Modulus during Cold Work Processing in 304 Austenitic Stainless Steel

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.795.145 ◽

2019 ◽

Vol 795 ◽

pp. 145-151

Author(s):

Kai Li ◽

He Xue ◽

Kuan Zhao ◽

Shuai Wang ◽

Ting Wang ◽

...

Keyword(s):

Stainless Steel ◽

Austenitic Stainless Steel ◽

Yield Strength ◽

Nuclear Power ◽

Cold Work ◽

Element Simulation ◽

Reduced Modulus ◽

Analysis Experiment ◽

304 Austenitic Stainless Steel ◽

Analytical Result

304 austenitic stainless steel is a common structural material used in the nuclear power plant, and its basic mechanical property would be changed by work hardening, which seriously affects the evaluation of the integrity of the nuclear power structure. The relationships of between the yield strength and the reduced modulus ratio (σ0.2/Er) with the residual indentation depth and maximum depth ratio (hr/hm) during cold work processing of 304 austenitic stainless steel is analyzed by using theoretical analysis, experiment and finite element simulation, and an approximate analytical model to expressσ0.2/Erbyhr/hmis established in this paper. The investigating results indicate that yield strength, Vickers hardness, andσ0.2/Erwill increase, andhr/hmdecreases with the material deformation increasing, and the analytical result of theσ0.2/Erbasically consistent with the experiment result.

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