scholarly journals Atom-Probe Micro-characterization of Grain Boundary Carbide Precipitation and Impurity-segregation in type 304 stainless steel

1989 ◽  
Vol 38 (11) ◽  
pp. 586-592 ◽  
Author(s):  
Yuichi Ishikawa ◽  
Toshihiko Yoshimura ◽  
Yuko Koguchi ◽  
Kazue Takahashi
Keyword(s):  
Stainless Steel ◽  
Grain Boundary ◽  
Atom Probe ◽  
Carbide Precipitation ◽  
304 Stainless Steel ◽  
Boundary Carbide ◽  
Impurity Segregation ◽  
Type 304 ◽  
Type 304 Stainless Steel

Towards Understanding the Development of Grain Boundary Clusters in Austenitic Stainless Steel

2010 ◽  
Vol 638-642 ◽  
pp. 3206-3211 ◽  
Author(s):  
D.L. Engelberg ◽  
S. Rahimi ◽  
T.James Marrow
Keyword(s):  
Stainless Steel ◽  
Grain Boundary ◽  
304 Stainless Steel ◽  
Local Distribution ◽  
Microstructure Characteristics ◽  
Order Of Magnitude ◽  
Maximum Cluster ◽  
Type 304 ◽  
Type 304 Stainless Steel ◽  
Cluster Length

The development of global microstructure characteristics has been compared to the local distribution and extent of Σ3 and Σ3n (1 n 3) grain boundary clusters as a function of thermo-mechanical processing in Type 304 stainless steel. A cold reduction of 5% produced GBE modified microstructures on annealing at 1050°C, containing almost one order of magnitude longer maximum cluster lengths than the corresponding annealing treatments for a reduction of 15%. Differences in the development of the distributions of cluster length scales were observed between the thermo-mechanical treatments. A re-conversion of the longest cluster obtained after GBE processing was observed with long annealing times. The local distribution of Σ3n boundary clusters was assessed, and regions with a low density of clusters are indicative of the onset of GBE conversion of microstructure.

Role of grain boundary nature and residual strain in controlling sensitisation of type 304 stainless steel

2013 ◽  
Vol 66 ◽  
pp. 242-255 ◽  
Author(s):  
Parag M. Ahmedabadi ◽  
Vivekanand Kain ◽  
Bhupinder Kumar Dangi ◽  
I. Samajdar
Keyword(s):  
Stainless Steel ◽  
Grain Boundary ◽  
Residual Strain ◽  
304 Stainless Steel ◽  
Type 304 ◽  
Type 304 Stainless Steel

An Intergranular Fracturing Technique for Grain Boundary Segregation Studies of Austenitic Stainless Steel

CORROSION ◽  
1977 ◽  
Vol 33 (8) ◽  
pp. 304-306 ◽  
Author(s):  
J. Y. PARK ◽  
S. DANYLUK
Keyword(s):  
Stainless Steel ◽  
Grain Boundary ◽  
Boundary Segregation ◽  
Austenitic Stainless Steels ◽  
Analytical Techniques ◽  
304 Stainless Steel ◽  
Auger Electron Spectroscopy Analysis ◽  
Fracture Surfaces ◽  
Type 304 ◽  
Type 304 Stainless Steel

Abstract A creep-deformation, heat treatment impact-fracture technique that can be used to produce grain boundary surfaces is described. The technique is especially useful for exposing grain boundaries of austenitic stainless steels and can also be used with surface-sensitive analytical techniques. Intergranular fracture surfaces of Type 304 stainless steel have been produced using this technique. Auger electron spectroscopy analysis was performed on these fracture surfaces.

Contrast Effects at Grain Boundary Ledges in 304 Austenitic Stainless Steel

1972 ◽  
Vol 30 ◽  
pp. 650-651
Author(s):  
R. C. McDonald ◽  
A. J. Ardell
Keyword(s):  
Stainless Steel ◽  
Grain Boundary ◽  
304 Stainless Steel ◽  
Contrast Effects ◽  
Transmission Electron ◽  
304 Austenitic Stainless Steel ◽  
Cold Worked ◽  
Type 304 ◽  
Type 304 Stainless Steel ◽  
Strong Contrast

Grain boundary ledges and/or dislocations have been observed in a wide variety of materials by a number of investigators using transmission electron microscopy (TEM) techniques. These defects can be expected to have interesting implications in terms of grain boundary precipitation reactions and creep behavior. In this paper we describe some of our TEM observations of grain boundary ledges in a specimen of type 304 stainless steel which was solution treated at 1040°C, quenched, cold worked 2%, and aged for 15 minutes at 850°C.The configuration of the ledges can be observed in Fig. 1. For the diffracting conditions in Fig. 1 both bright and dark contrast effects are associated with many of the ledges. Strong contrast of this sort has been observed by other investigators. This strong contrast is not typical, however, as can be seen on comparison with Figs. 2 and 3, which show the same grain boundary under different diffracting conditions.

ENDURO 18-8STi

Alloy Digest ◽  
1963 ◽  
Vol 12 (11) ◽  
Keyword(s):  
Fracture Toughness ◽  
Stainless Steel ◽  
Corrosion Resistance ◽  
High Temperature ◽  
Heat Treating ◽  
Carbide Precipitation ◽  
304 Stainless Steel ◽  
Temperature Performance ◽  
Type 304 ◽  
Type 304 Stainless Steel

Abstract ENDURO 18-8STi is the titanium-type 304 stainless steel stabilized by titanium. It is not made sensitive to intergranular corrosion by heating within the carbide precipitation range. It is recommended for use at temperatures up to 1600 F. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness, creep, and fatigue. It also includes information on high temperature performance and corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: SS-149. Producer or source: Republic Steel Corporation.

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