Effect of alloying

Fig. 6. Effect of alloying elements on the phase diagram of titanium (a) a-stabilized system, (b) P-isomorphous system, and (c) P-eutectoid system.

Practical considerations enter into the experimental plan in various other ways. In many programs, variables are introduced at different operational levels. For example, in evaluating the effect of alloy composition, oven temperature, and varnish coat on tensile strength, it may be convenient to make a number of master alloys with each composition, spHt the alloys into separate parts to be subjected to different heat treatments, and then cut the treated samples into subsamples to which different coatings are appHed. Tensile strength measurements are then obtained on all coated subsamples. 

Figure 3-11. Effect of alloy content on long-term rupture stress for cast modified Nl-Cr-Fe alloys." ...

Tomashov, N. D., Chernova, G. P. and Markova, O. N., Effect of Alloying Elements on the Tendency of Stainless Chromium-Nickel Steels to Pitting Corrosion , Sa. Korroziya Meta i Splavov, 73 (1963) C.A., 60, 3805b... 

The effect of alloying additions on the marine corrosion properties of non-ferrous metals can be very significant, and for copper-based alloys has been comprehensively reviewed by Bradley... 

Table 3.10 Effect of alloying elements on marine corrosion resistance...

Kawabata, R., Miyase S. and Tagaya, M. Effects of Alloying Elements on Flash Points... 

The method is more useful with titanium, and the effect of alloying titanium with a small amount of palladium is described in Section 5.4. The use of platinum in the prevention of hydrogen embrittlement in tantalum. 

Fig. 7.36 Effect of alloying on the rate constant for oxidation of nickel at 900°C ...

Notwithstanding possible explanations of the effects of these various alloying elements, perhaps the most important message arising from the effects reflected in equations (8.11). (8.12) and (8.13) is that the effects of alloying elements vary with the environment. It follows that a steel resistant to cracking in one environment may not be resistant in others, with the effect... 

Recent interest in weathering steels has stimulated work on accelerated laboratory tests which can be used to investigate the effect of alloy composition on performance. It is well established that a wetting and drying cycle should be an integral part of any laboratory test in which the characteristic properties of weathering steels are revealed , and Bromley, Kilcullen and... 

It is convenient to classify the observed (or expected. ) effects of alloying in two classes (4,6) ... 

However, before we accept this conclusion as the definitive one, a word of caution is necessary. Due to the CO-CO interactions the heats of adsorption depend on the coverage 0. Shek et al (17) compared Pt and alloys at a constant dosage and this could mean that the coverage of Pt was (at the same dosage) lower on Pt than on alloys, and consequently - the heat of adsorption higher. Shek et al report the above mentioned data for the (111) faces of Pt and alloys. They studied also the (110) faces, but there the effect of alloying is masked by the reconstruction of the surface upon CO-adsorption (18). 

Binder H, Kohling A, Sandstede G. 1972. Effect of alloying components on the catalytic activity of platinum in the case of carbonaceous fuels. In Sandstede G, ed. From Electrocatalysis to Fuel Cells. Seattle University of Washington Press, p. 43. 

Property Effect of alloying on base metal Implication... 

M. I. Weaver, M. J. Kaufman, and R. D. Noeb, The Effects of Alloy Purity on the Mechanical Behavior of Soft Oriented NiAl Single Crystals, Scripta Met. Mat., 29,1113 (1993). 

Huges, R.C., Schubert, W.K. and Buss, R.J., Solid-state hydrogen sensors using palladium-nickel alloys Effect of alloy composition on sensor response, Journal of Electrochemical Society, 142, 249,1995. 

P-apo-8 -carotenal, 24 560-561 P-aroylacrylic acids, 15 486 P-brasses, effect of alloying on mechanical properties, 7 677... 

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