Stress corrosion cracking performance

J- Hewitt, M. Tullmin, Corrosion and stress-corrosion cracking performance of stainless steel and other reinforcing materials in concrete , in Corrosion and Corrosion Protection of Steel in Concrete, R. N. Swamy (Ed.), Vol, I, 1994, 527-539. 

Richert, J. P., Bagdasarian, A. J. and Shargay, C. A., Stress corrosion cracking of carbon steel in amine systems. Materials Performance, 27, 9-18 (1988)... 

Little information is available on the performance of copper and of copper alloys in contact with concrete, but concrete sometimes contains ammonia, even traces of which will induce stress-corrosion cracking of copper pipe. The ammonia may be derived from nitrogenous foaming agents used for producing lightweight insulating concrete. 

Heat treatment may also affect the extent and distribution of internal stresses. These may be eliminated by appropriate annealing treatments which can remove susceptibility to stress-corrosion cracking. This must be explored in any studies of the performance of materials in environments where stress-corrosion cracking is a hazard. In particular cases, stress-relief annealing treatments may result in the appearance of new phases which, while eliminating the stress-corrosion effects, will induce another type of path of attack. This possibility must be kept in mind in assessing the overall benefits of heat treatments applied primarily for stress relief. 

Method for performing a stress-corrosion cracking test of low copper containing Al-Zn-Mg alloys in boiling 6% sodium chloride solution... 

Parkins, R.N., An Overview- Prevention and Control of Stress Corrosion Cracking, Materials Performance, 24, 9-20 (1995). 

S. Haruyama, Stress Corrosion Cracking by Cooling Water of Stainless-Steel Shell and Tube Heat Exchangers, Materials Performance, March 1982, 14-19. 

A. Punter, A. T. Fikkers, G. Vanstaen. Hydrogen-Induced Stress Corrosion Cracking on a Pipeline. Materials Performance 31(6), 24 (1992). (Proceedings of the Pipe Protection Conference, Cannes, France, 1991.)... 

As with all standardized tests (e g., the ASTM A 262 procedures previously discussed), correlations must be established between the EPR Pa values and service performance. For example, a criterion of Pa < 2 C/cm2 has been proposed for adequate resistance to intergranular corrosion leading to intergranular stress-corrosion cracking (IGSCC) of type 304 and 304L pipe and welds. Other limits would be set depending on the material, application, and environment (Ref 105, 106). 

T7xx) designed to provide a good combination of strength, fracture toughness, and stress-corrosion cracking resistance (Ref 1). The work described in this section was performed on... 

The empiricism that appears to follow the corrosion engineer arises from the multi-factor, multi-component situations which are present within all common articles of commerce, be they made from iron, aluminum, or more exotic material combinations. The variables are continually interacting in increasingly complex ways so we can become engrossed for even a lifetime with just one problem in performance such as airfoil stress corrosion cracking, boiler feed water stabilizations, or corrosion inhibiting paints, and many more. But does this mean the work lacks for glamour and excitement ... 

NACE Technical Committee, Task Group T-lF-23, Stress corrosion cracking resistance of pipeline welds a special report on sulfide stress cracking resistance of pipeline welds. Mater. Perform. 32 (1993) 58-64. 

G.H. Koch, T.J. Barlo, W.E. Berry, Effect of grit-blasting on the stress corrosion cracking behavior of line pipe steel, Mater. Performance 23 (1984) 20—23. 

The stabilised austenitic stainless steels for cladding contain an alloying element (niobium), which forms stable grain boundary carbides. This prevents chromium depletion along the grain boundaries and makes the material immune to stress corrosion cracking. Non-stabilised material was used for the first layer because the thermal expansion coefficient of the material is closer to that of the low-alloy pressure vessel material. The presence of niobium in the second layer allows performance of so-called retrospective dosimetry in the RPV inner surface by machining out some scraps for further chemical separation and activity measurement to determine real neutron fluence on the RPV inner surface. 

Lunde, L., and Nyborg, R. (1989). Stress-corrosion cracking of carbon steel in ammonia. Mater. Performance, 28(12), 29-32. 

Material and structural issues to be addressed are primarily related to the potential for corrosion and stress corrosion cracking under irradiation at the high temperatures and pressures associated with the SCWR. Materials for cladding and structural components must be identified and tested to demonstrate their performance in thermal and fast-spectrum reactors. Radiolysis and water chemistry at supercritical conditions must be investigated to understand the effect on reactor materials. Specific material properties to be investigated include dimensional and microstructure stability, and strength, embrittlement, and creep resistance characteristics of the materials. 

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