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Published: 01 October 2014
Fig. 21 Polarization curves for AISI 316 in as-delivered and low-temperature nitrocarburized state. Measurement was carried out in an aqueous 3.5% NaCl solution at room temperature. For the nitrocarburized sample repassivation occurs in the transpassive region, indication that the material More
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Published: 01 October 2014
Fig. 5 Microstructural evaluation of low-temperature carburized 316 stainless steel. (a) X-ray diffraction (XRD) of different depths within the case, obtained by serial removal of the surface via electropolishing. Note the peak shift to the left from nontreated specimen to carburized surface More
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Published: 01 October 2014
Fig. 8 Stress-strain curve for treated vs. nontreated 316 stainless steel tensile specimens. Source: Ref 35 More
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Published: 01 October 2014
Fig. 9 Results of fatigue testing of standard round bar 316 stainless steel specimens, in tension-compression cycling ( R = –1). Note two orders of magnitude improvement for fatigue life of treated vs. nontreated 316 specimens at a maximum stress of 350 MPa (50 ksi). Also, maximum stress More
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Published: 01 October 2014
Fig. 10 Effect of low-temperature carburization on fatigue crack growth for 316 stainless steel. Low-temperature carburization treatment slows the progress of a fatigue crack through a specimen. These lines of data and their slopes indicate that a much larger stress must be applied in order More
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Published: 01 October 2014
Fig. 11 Wear maps for (a) treated and (b) nontreated 316 stainless steel. T316 stainless steel: treated by low-temperature carburization. NT316 stainless steel: nontreated (as received). Note the significant improvement in wear rates for treated vs. nontreated surfaces for the same loads More
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Published: 01 October 2014
Fig. 12 Wear debris and wear track trace for nontreated and treated 316 stainless steel. The wear track trace was measured using atomic force microscopy (AFM); a deeper trace indicates more material removed. Source: Ref 41 More
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Published: 01 October 2014
Fig. 14 Cavitation test results for treated vs. nontreated 316 stainless steel. Cavitation testing was performed in liquid mercury as the dense liquid medium, using a vibratory horn. Eight-fold reduction in weight loss for treated vs. nontreated specimens is shown. Source: Ref 2 More
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Published: 01 October 2014
Fig. 15 Cyclic polarization curves of nontreated and treated 316 stainless steel specimens in (a) 0.6M NaCl and (b) seawater. Courtesy of F.J. Martin, Naval Research Laboratory (NRL) More
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Published: 01 January 1986
Fig. 17 Conventional SADP (a) and ZOLZ-CBEDP (b) in 316 stainless steel. The diffraction patterns were taken along the [111] zone axis. The two diffraction patterns are essentially identical and can be indexed using the same procedure. If the beam convergence angle in the CBEDP is increased More
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Published: 01 January 1986
Fig. 19 Kossel CBEDP from 316 stainless steel in which the diffraction disks overlap. Only the zero-order Laue reflections are visible in this image. Courtesy of M. Kersker More
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Published: 01 January 1986
Fig. 20 HOLZ pattern taken from 316 stainless steel. Only the FOLZ ring is present in the CBEDP. The HOLZ lines are also visible. Analysis of these patterns allows for precise determination of the three-dimensional crystallography of the specimen. Courtesy of M. Kersker More
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Published: 01 October 2014
Fig. 3 X-ray diffraction patterns of untreated and plasma-nitrided (PN) AISI 316 steel showing two broad peaks, S1 and S2, generated from low-temperature nitrided layer. Source: Ref 4 More
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Published: 01 October 2014
Fig. 9 Layer thickness vs. plasma nitriding temperature for AISI 316, 304, and 321 stainless steels. Source: Ref 9 More
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Published: 01 October 2014
Fig. 14 Micrograph of nitrided AISI 316 (673 K for 4 h) showing the S-phase layer above the austenitic matrix. Source: Ref 14 More
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Published: 01 October 2014
Fig. 15 Micrograph of nitrocarburized AISI 316 (673 K for 4 h) showing the S-phase layer above the austenitic matrix. Source: Ref 14 More
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Published: 01 October 2014
Fig. 16 Micrograph of nitrided AISI 316 (773 K for 22 h) showing the S-phase layer above the austenitic matrix with the nitride layer at the top. Source: Ref 14 More
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Published: 01 October 2014
Fig. 17 Micrograph of nitrocarburized AISI 316 (773 K for 22 h) showing the S-phase layer above the austenitic matrix with the nitrocarbide layer at the top. Source: Ref 14 More
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Published: 01 October 2014
Fig. 18 Optical micrographs showing nitrided layers produced on AISI 316 steel after 20 h at (a) 400 °C (750 °F), (b) 500 °C (930 °F), and (c) 550 °C (1020 °F). Source: Ref 15 More
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Published: 01 October 2014