Applicability of the EPR-test to investigate the sensitization behavior of the heat resistant austenitic stainless steel TP310HCbN after stress relief heat treatment

2016 ◽  
Vol 67 (9) ◽  
pp. 994-1002
Author(s):  
S. Schmigalla ◽  
S. Schultze
Keyword(s):  
Heat Treatment ◽  
Stainless Steel ◽  
Austenitic Stainless Steel ◽  
Stress Relief ◽  
Heat Resistant ◽  
Sensitization Behavior ◽  
Epr Test

Effect of Grain Boundary Serration on the Tensile Properties of the Super 304H Heat Resistant Austenitic Stainless Steel

2010 ◽  
Vol 654-656 ◽  
pp. 170-173 ◽  
Author(s):  
Sung Min Hong ◽  
Dong Joon Min ◽  
Eric Fleury
Keyword(s):  
Heat Treatment ◽  
Tensile Strength ◽  
Stainless Steel ◽  
Austenitic Stainless Steel ◽  
Grain Boundary ◽  
Tensile Properties ◽  
Solution Heat Treatment ◽  
Room Temperature ◽  
Tensile Ductility ◽  
Heat Resistant

Grain boundary serrations were produced in heat-resistant austenitic stainless steel containing Cu by applying after solution heat-treatment a holding time in the range 700-800oC between 30 minutes to 3 hours. These special treatments provide an enhancement of the tensile ductility of about 40 and 113%at room temperature and 750oC, respectively, while no significant change in the yield stress and tensile strength could be observed.

Impact Strength of Austenitic Stainless-Steel Welds at −320 F—Effects of Composition, Ferrite Content, and Heat-Treatment

1966 ◽  
Vol 88 (1) ◽  
pp. 33-36 ◽  
Author(s):  
F. W. Bennett ◽  
C. P. Dillon
Keyword(s):  
Heat Treatment ◽  
Stainless Steel ◽  
Austenitic Stainless Steel ◽  
Impact Strength ◽  
Stress Relief ◽  
304 Stainless Steel ◽  
Ferrite Content ◽  
310 Stainless Steel ◽  
Steel Welds ◽  
The Impact

A statistical evaluation has been made of the effect of weld rod composition, ferrite content, and heat-treatment upon the impact strength of certain austenitic stainless-steel welds in 304 stainless-steel plate at −320 F. The data indicate that suitable and approximately equivalent properties are obtained with 310 stainless-steel rod in the as-welded condition, type 308 stainless-steel rod in the as-welded condition (ferrite less than 6 percent), and 308L stainless-steel rod either as-welded or stress-relieved at 1750 F (ferrite less than 9 percent). The impact resistance of 310 stainless steel is adversely affected by stress relief, apparently due to carbide precipitation in this alloy. The 308 and 308L stainless-steel rods are both adversely affected by a stress relief at 1550 F, indicative of sigma formation. The carbon content in 308 stainless-steel rods apparently is not a major factor, as indicated by the lack of adverse effects with a 1750 F stress relief, from which the rate of cooling through the sensitizing range of 800 to 1500 F is identical with that in the 1500 F stress relief. The basic practical conclusion to be drawn from these data is that regular carbon 304 stainless steel welded with 308L stainless-steel rod can be used in cryogenic applications, and that the decision as to whether to stress relieve or not may be left to the mechanical engineer, subject only to the stipulation of a minimum stress-relieving temperature of 1750 F.

Characterization of Hot-Steam Oxidation Tested Chromosiliconized Heat-Resistant Austenitic Stainless Steel

2012 ◽  
Vol 53 (6) ◽  
pp. 1090-1093 ◽  
Author(s):  
Yasuhiro Hoshiyama ◽  
Xiaoying Li ◽  
Hanshan Dong ◽  
Akio Nishimoto
Keyword(s):  
Stainless Steel ◽  
Austenitic Stainless Steel ◽  
Steam Oxidation ◽  
Heat Resistant

KUBOTA HH II

Alloy Digest ◽  
2006 ◽  
Vol 55 (11) ◽  
Keyword(s):  
Stainless Steel ◽  
High Temperature ◽  
Austenitic Stainless Steel ◽  
Physical Properties ◽  
Tensile Properties ◽  
Steel Casting ◽  
Heat Resistant ◽  
Temperature Performance

Abstract Kubota alloy HH II is a heat-resistant fully austenitic stainless steel casting for multiple furnace parts. This datasheet provides information on composition, physical properties, elasticity, and tensile properties as well as creep. It also includes information on high temperature performance as well as casting and joining. Filing Code: SS-980. Producer or source: Kubota Metal Corporation, Fahramet Division.

Effect of Sensitization Time on Intergranular Corrosion of 347H Stainless Steel

2021 ◽  
Vol 904 ◽  
pp. 506-511
Author(s):  
Liang Chang ◽  
Xue Tao Zhang ◽  
Zhi Juan Zhao ◽  
Yun Yan Peng ◽  
Jing Miao Li ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Stainless Steel ◽  
Intergranular Corrosion ◽  
Corrosion Test ◽  
Double Loop ◽  
Maximum Value ◽  
Microscopic Morphology ◽  
Epr Test ◽  
Sensitization Time

In this paper, 347H stainless steel of three situation of solution, primary and secondary stabilizing with 0, 12, 24, 48 and 72 h accelerated sensitization heat treatment. The change of sensitization degree with time was studied by metallographic test, double-loop electrochemical potentiodynamic reactivation (DL-EPR) test, intergranular corrosion test and microscopic morphology observation. The result shows that the sensitization degree of the solution material increases rapidly and reaches the maximum value after 12h sensitization heat treatment. After that, it still belonged to severe sensitization situation, but the index gradually decreased. After stabilizing heat treatment, the sensitization degree of the material is lower than the situation of solution. After heat treatment for 48h, the material located on “possible sensitization” range, and the sensitization degree of the secondary stabilized material was always lower than is of the primary. It indicates that the sensitization of materials can not be completely inhibited by stabilizing heat treatment, and other anti-corrosion measures should be considered.

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