scholarly journals Creep Properties of Low-Carbon Nitrogen-Alloyed Modified 316 Stainless Steel.

1991 ◽  
Vol 40 (457) ◽  
pp. 1283-1289
Author(s):  
Kazuo OGAWA ◽  
Tetsuro UNO ◽  
Nobuhiro FUJITA ◽  
Hidetaka KIMURA ◽  
Takanori NAKAZAWA
1989 ◽  
pp. 1041-1048 ◽  
Author(s):  
T. Nakazawa ◽  
H. Abo ◽  
M. Tanino ◽  
H. Komatsu ◽  
T. Nishida ◽  
...  

1997 ◽  
Vol 83 (5) ◽  
pp. 317-322 ◽  
Author(s):  
Takanori NAKAZAWA ◽  
Nobuhiro FUJITA ◽  
Hidetaka KIMURA ◽  
Hajime KOMATSU ◽  
Hiroyuki KOTOH ◽  
...  

1998 ◽  
Vol 120 (2) ◽  
pp. 119-125 ◽  
Author(s):  
Yukio Takahashi

Low-carbon, medium-nitrogen 316 stainless steel is a principal candidate for a main structural material of a demonstration fast breeder reactor plant in Japan. A number of long-term creep tests and creep-fatigue tests have been conducting for two heats of the steel. Two representative creep-fatigue life prediction methods, i.e., time fraction rule and ductility exhaustion method were applied. An introduction of a simple viscous strain term improved the description of stress relaxation behavior and only the conventional (primary plus secondary) creep strain was assumed to contribute to creep damage in the ductility exhaustion method. The present ductility exhaustion approach was found to have very good accuracy in creep-fatigue life prediction, while the time fraction rule overpredicted failure life as large as a factor of 30.


Alloy Digest ◽  
2015 ◽  
Vol 64 (10) ◽  

Abstract ATI 316LN stainless is a low carbon, nitrogen-enhanced version of Type 316 stainless steel. This version is more intergranular and pitting resistant than Type 316. This datasheet provides information on composition, physical properties, hardness, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, and joining. Filing Code: SS-1227. Producer or source: Allegheny Technologies Inc..


Author(s):  
E. L. Hall

The resistance of stainless steel to sensitization can be increased by reducing the carbon content, since sensitization is caused by the formation of chromium-rich carbides at grain boundaries which depletes the boundary region of chromium. The reduction in carbon content also lowers the strength of the steel, but this can be counteracted by adding nitrogen, leading to a series of low-carbon high-nitrogen alloys which are promising candidates for applications in the nuclear industry. However, the effect of nitrogen on the phase relationships in stainless steel are complex, and the purpose of this study is to examine these effects.Samples of 316 stainless steel with 16 w/o Cr, 9.8 w/o Ni, 2.5 w/o Mo, 0.03 w/o C, and 0.06-0.16 w/o N which had been solutionized and then aged at 600-700°C for 3-300 hours were used. Grain boundary phases were identified using electron diffraction, and grain boundary chemistry was measured using X-ray spectroscopy with a 10nm probe, either positioned directly on the boundary or stepped across the boundary with a spatial resolution of 50nm. The Cliff-Lorimer method was used to quantify the x-ray results.


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