Small-angle neutron scattering investigation of creep damage in type 304 stainless steel and alloy 800

1985 ◽  
Vol 16 (12) ◽  
pp. 2283-2289 ◽  
Author(s):  
R. A. Page
Keyword(s):  
Stainless Steel ◽  
Neutron Scattering ◽  
Small Angle ◽  
Small Angle Neutron Scattering ◽  
Creep Damage ◽  
304 Stainless Steel ◽  
Alloy 800 ◽  
Type 304 ◽  
Type 304 Stainless Steel

Experimental Study of Biaxial Creep Damage for Type 304 Stainless Steel

2002 ◽  
Vol 11 (3) ◽  
pp. 247-262 ◽  
Author(s):  
Masao Sakane ◽  
Hiroto Tokura
Keyword(s):  
Stainless Steel ◽  
Biaxial Tension ◽  
Crack Opening ◽  
Equivalent Stress ◽  
Creep Damage ◽  
304 Stainless Steel ◽  
Creep Tests ◽  
Biaxial Creep ◽  
Type 304 ◽  
Type 304 Stainless Steel

This paper studies the biaxial creep damage of type 304 stainless steel at 923 K. Biaxial tension creep tests were carried out using cruciform specimens and the effect of stress biaxiality on rupture lifetime and creep voiding was discussed. Mises equivalent stress and the equivalent stress based on crack opening displacement were a suitable parameter to assess the biaxial creep damage. The equivalent stress proposed by Huddleston overestimated the biaxial creep damage by more than a factor of two. Stress biaxiality had almost no influence on the orientation of voided grain boundaries and the critical value ofparameter A. Tests of alternative loading direction significantly dispersed the biaxial creep damage resulting in larger creep lifetime.

Caustic Stress Corrosion Cracking Studies at 288 C (550 F) Using the Straining Electrode Technique — Comparison of Alloy 600, Alloy 800, and Type 304 Stainless Steel

CORROSION ◽  
1978 ◽  
Vol 34 (6) ◽  
pp. 198-209 ◽  
Author(s):  
J. R. CELS
Keyword(s):  
Stainless Steel ◽  
Electrical Potential ◽  
Open Circuit ◽  
Grain Structure ◽  
304 Stainless Steel ◽  
Nickel Wire ◽  
Alloy 600 ◽  
Alloy 800 ◽  
Type 304 ◽  
Type 304 Stainless Steel

Abstract Constant pull rate tests were conducted on tensile specimens of Inconel Alloy 600, Incoloy Alloy 800, and Type 304 stainless steel in deaerated 10% NaOH solution at 288 C (550 F) with a cover gas of 5% H2 in N2. The pull rate used for most experiments was 3.3 x 10−6 cm/s, which corresponds to an initial strain rate of 3 x 10−6 s−1. The electrical potential of the specimens was controlled by a potentiostat using a nickel wire as a hydrogen reference electrode. Under open circuit conditions, Type 304 stainless steel specimens cracked rapidly, but Alloys 600 and 800 specimens exhibited only ductile fracture. However, cracks readily formed in Alloy 800 specimens at potentials in the +50 to +300 mV range and in Alloy 600 specimens at potentials in the +150 to +250 mV range. Scanning electron microscope (SEM) photographs of some of the cracked specimen surfaces showed the transition from ductile to brittle fracture as a consequence of changes in the specimen's electrical potential. Longitudinal metallographic cross sections also revealed the grain structure and the mode of cracking. They showed that the cracks were intergranular in Alloy 600 and Type 304 stainless steel specimens, and were transgranular in Alloy 800 specimens.

Small-angle neutron scattering investigation ofM23C6precipitation in AISI 304 stainless steel

1981 ◽  
Vol 14 (5) ◽  
pp. 337-344 ◽  
Author(s):  
A. Boeuf ◽  
R. Coppola ◽  
F. Rustichelli ◽  
F. Zambonardi ◽  
S. Melone ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Neutron Scattering ◽  
Small Angle ◽  
Small Angle Neutron Scattering ◽  
304 Stainless Steel ◽  
Aisi 304 Stainless Steel ◽  
Aisi 304
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