Stress corrosion cracking susceptibility

Standard Test Methods for Use ofMattsson s Solution of pH 7.2 to Evaluate the Stress Corrosion Cracking Susceptibility of Copper—Zinc Alloys, ASTM G 37-85, American Society for Testing and Materials, Philadelphia, Pa., 1992. 

Sheehan, J. P., Morin, C. R. and Packer, K. F., Study of Stress Corrosion Cracking Susceptibility of Type 316L Stainless Steel In-Vitro , in Corrosion and Degradation of Implant Materials, Second Symposium , (Eds) A. C. Fraker and C. D. Griffin, 57-72 ASTM Publication STP 859, Philadelphia (1985)... 

However, whilst the effects of change in alloy composition upon stress-corrosion cracking susceptibility in the present context may be partly due to their effect upon stacking-fault energy, this does not constitute a complete explanation, since alloying may have significant effects upon electrochemical parameters. The effect of the zinc content of brasses upon their filming characteristics has already been mentioned, while in more recent... 

Fig. 7. Stress corrosion cracking susceptibility of sensitized Type 304SS in 0.01 M Na2S04 at 250 °C as a function of potential [29]. Reproduced from Proc. 9th Int. Congr. Met. Corros. Vol. 2, pp. 185-201 (1984) by permission of the National Research Council of Canada.

A. Kawashima, A.K. Agrawal, and R.W. Staehle, Effect of Oxyanions and Chloride Ion on the Stress Corrosion Cracking Susceptibility of Admiralty Brass in Nonammonical Aqueous Solutions, Stress Corrosion Cracking The Slow Strain-Rate Technique, STP 665, G.M. Uglansky and J.H. Payer, Ed., ASTM, 1979, p 266-278... 

A typical rack employed for installation of specimens in pilot plants is shown in Fig. 6. Both corrosion coupons, 2 X 1 X 0.35 in. thick, and bend specimens intended to determine stress-corrosion cracking susceptibility, are included in the installation for aqueous corrosion testing. Specimens are separated by high density alumina spacers to eliminate electrochemical effects. During exposure, the racks are welded to existing components in the pilot plant equipment. 

C.M. Rangel, T.M. Sdva, M. da Cunha Belo, Semiconductor electrochemistry approach to passivity and stress corrosion cracking susceptibility of stainless steels, Electrochim. Acta 50 (2005) 5076-5082. 

Clarke, W. L. and Gordon, G. M., Investigation of Stress Corrosion Cracking Susceptibility of Fe-Ni-Cr Alloys in Nuclear Reactor Water Environments, Corrosion, January 1973, p. 1. 

ASTM G 37 (Practice for Use of Mattsson s Solution of pH 7.2 to Evaluate the Stress Corrosion Cracking Susceptibility of Copper-Zinc AUoys) is an accelerated stress corrosion cracking test environment for brasses (copper-zinc alloys). The use of this test environment is not recommended for other copper alloys since the results may be erroneous, providing completely misleading rankings. This is particularly true of alloys containing aluminum or nickel as deliberate alloying additions. 

This practice is intended primarily where the test objective is to determine the relative stress corrosion cracking susceptibility of different brasses under the same or different stress conditions or to determine the absolute degree of stress corrosion susceptibility, if any, of a particular brass or brass component under one or more specific stress conditions. The tensile stresses may be known or unknown, applied or residual. 

Lyle, F. F., Stress Corrosion Cracking Susceptibility of Weldments in Duplex Stainless Steels, MTI Publication No 33, National Association of Corrosion Engineers, Houston TX, 1989, p. 1. 

Figure 10 Stress corrosion cracking susceptibility of martensitic 13% chromium steel as a function of nickel and carbon content as well as heat treatment (tempering), according to CERT tests in high purity water at 288 °C [69]...

Figure 16 shows the decreasing elongation with increasing temperature and the associated increase in stress corrosion cracking susceptibility. 

The method also allows the influence of the ferrite content in weld seams on stress corrosion cracking susceptibility to be determined. For a very low ferrite content the weld metal is significantly more susceptible to stress corrosion cracking, which is verified by the very low elongation values in Figure 17. 

Samples from high purity ISCrSNi steel result in the highest stress corrosion cracking susceptibility... 

Figure 21 Stress corrosion cracking susceptibility of sensitised alloys in high purity water with 8 mg/l oxygen at 300 °C. Crack depths in mm as a function of test time in h [118]...

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