Quantification of strain-induced martensite in 304L stainless steel in the presence of stress concentration

The fatigue crack growth behaviors of cold worked 304L stainless steel (SS) in air and gaseous hydrogen were evaluated, and further compared with the base plate. Cold rolling caused a rise in surface hardness and induced austenite to martensite transformation of 304L SS. Despite of testing environment, the fatigue crack growth rate (FCGR) of the cold worked specimen was higher than that of the base metal. Furthermore, both kinds of specimens were susceptible to hydrogen-accelerated crack growth. Mainly quasi-cleavage fracture related with the strain-induced martensite together with separation along twin boundaries accounted for the accelerated crack growth of the specimens in hydrogen.

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RELAXATION PEAKS OF COLD WORKED 304L STAINLESS STEEL

Le Journal de Physique Colloques ◽

10.1051/jphyscol:1981530 ◽

1981 ◽

Vol 42 (C5) ◽

pp. C5-193-C5-198 ◽

Cited By ~ 4

Author(s):

N. Igata ◽

H. B. Chen ◽

K. Miyahara ◽

T. Uba

Keyword(s):

Stainless Steel ◽

304L Stainless Steel ◽

Cold Worked

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CARPENTER PROJECT 70+ TYPE 304/304L

Alloy Digest ◽

10.31399/asm.ad.ss0875 ◽

2003 ◽

Vol 52 (2) ◽

Keyword(s):

Stainless Steel ◽

Corrosion Resistance ◽

Physical Properties ◽

Heat Treating ◽

General Purpose ◽

304L Stainless Steel ◽

Type 304 ◽

Complex Parts

Abstract Carpenter Project 70+ Type 304/304L is a modified version of Type 304/304L stainless steel with improved machinability when compared to conventional 304 (Alloy Digest SS-418, revised September 1997) and 304L (Alloy Digest SS-513, revised November 1997). The alloys are nonhardenable austenitic chromium-nickel steels and are good general-purpose materials for simple and complex parts. This datasheet provides information on composition, physical properties, and elasticity. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: SS-875. Producer or source: Carpenter Specialty Alloys.

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SANDVIK 3R12/4L7

Alloy Digest ◽

10.31399/asm.ad.sa0482 ◽

1996 ◽

Vol 45 (7) ◽

Keyword(s):

Stainless Steel ◽

Corrosion Resistance ◽

Carbon Steel ◽

Black Liquor ◽

Heat Treating ◽

304L Stainless Steel ◽

Design Load ◽

Recovery Boilers ◽

Major Application ◽

Outside Diameter

Abstract Sandvik 3R12/4L7 is a composite tube consisting of type 304L stainless steel for corrosion resistance on the outside diameter and having carbon steel (A210 Gr. A1) as the inside component for both water wetted service and the design load. The major application is tubing to handle the corrosive conditions in black liquor recovery boilers. This datasheet provides information on composition, physical properties, microstructure as well as fatigue. It also includes information on forming, heat treating, and joining. Filing Code: SA-482. Producer or source: Sandvik.

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