scholarly journals Study on Electrochemical Behavior and Mechanical Properties of Stainless Steel in Corrosive Environments, IX. Hydrogen Embrittlement Behavior of Passivation Treated SUS304 Stainless Steel in 30%HNO3 Solution at 60.DEG.C..

1994 ◽  
Vol 43 (494) ◽  
pp. 1496-1501
Author(s):  
Hiroyuki IWANAGA ◽  
Takeo OKI
Alloy Digest ◽  
2021 ◽  
Vol 70 (10) ◽  

Abstract OUTOKUMPU MODA 430/4016 is a 16% chromium ferritic stainless steel that combines good mechanical properties with good corrosion resistance and heat and oxidation resistance up to 815 °C (1500 °F). It is the most commonly used ferritic stainless steel grade and can be used to replace type 304 austenitic stainless steel in certain applications. It is best suited for mildly corrosive environments. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: SS-1340. Producer or source: Outokumpu Oyj.


2019 ◽  
Vol 99 (11) ◽  
pp. 404-413
Author(s):  
M. Hatano ◽  
H. Tsukasaki ◽  
A. Kawaguchi ◽  
S. Kawaguchi ◽  
Y. Kubota ◽  
...  

Author(s):  
Kazuyoshi Kawami ◽  
Bai An ◽  
Takashi Iijima ◽  
Seiji Fukuyama ◽  
Mutsuharu Imaoka ◽  
...  

Abstract Hydrogen barrier coating is a promising technology for preventing hydrogen embrittlement in metals. In this study, characterizations of hydrogen barrier films coated on surfaces of austenitic stainless steel, SUS304 of the Japanese Industrial Standard (JIS), by wet coating processes applied electro-polishing and chemical oxidation method are carried out using cross-sectional transmission electron microscopy (TEM) analyses, and then slow strain rate tensile (SSRT) tests are performed in 1.1MPa hydrogen and nitrogen gases at room temperature. The hydrogen barrier films show 200–300nm total thickness of compositionally modulated Chromium oxide dense layer. The SSRT results reveal that both the elongation and reduction of area are decreased in hydrogen gas compared with those in nitrogen gas for the non barrier-coated specimens but no significant differences appear for the barrier-coated specimens. The fracture surface of the non barrier-coated specimen shows quasi-cleavagy cracking in hydrogen gas while that of the barrier-coated specimen shows only ductile dimple fracture in hydrogen gas, indicating that the coated films effectively prevent the hydrogen embrittlement of SUS304 stainless steel in hydrogen.


Alloy Digest ◽  
2002 ◽  
Vol 51 (1) ◽  

Abstract Carlson alloy 926 Mo is a superaustenitic 6% Mo stainless steel that resists highly corrosive environments and has excellent chloride pitting, crevice, and stress-corrosion cracking resistance. It can be utilized where the performance of conventional austenitic stainless steels is bor-derline, or as a cost-effective substitute for nickel alloys. The higher mechanical properties that allow designs with thinner sections than con-ventional stainless steels are highly desired for oil platforms. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming, machining, and joining. Filing Code: SS-842. Producer or source: G.O. Carlson Inc., Electralloy.


2014 ◽  
Vol 620 ◽  
pp. 453-456
Author(s):  
Shun Myung Shin ◽  
Jei Pil Wang

Stainless steel materials (FeCr and FeCrNi-based alloys) are employed in a wide range of modern applications due to their ability to withstand corrosive environments while maintaining good mechanical properties. Their corrosion resistance originates from Cr-rich oxide layer which serves as a barrier against ion diffusion between the alloy and the ambient phase. Custom steel grades can be designed for specific applications by optimizing their properties throughout alloy composition [1].


2011 ◽  
Vol 488-489 ◽  
pp. 234-237
Author(s):  
Noriyuki Takano ◽  
Yutaka Kaidu

It is known that type 310S stainless steel is insensitive to hydrogen embrittlement. Then, the effect of hydrogen on the mechanical properties has not been studied in detail. In the present work, SSRT was carried out under hydrogen cathodic charging condition. Elongation increased by hydrogen charging, while reduction of area decreased. A lot of micro-cracks were observed on the side surface of fractured specimens into which hydrogen was charged, while no cracks were observed on the side surface of fractured specimens without hydrogen charging. Micro-cracks were also observed on the surface of unloaded specimens that were annealed after hydrogen charging. Therefore, it is considered that cracks occur from the defects induced by hydrogen charging.


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