Effect of Alloying Elements

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.

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... 

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... 

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... 

Anti-Ferromagnetic and Ferri-Magnetic Systems The Effect of Alloying Elements... 

TABLE 9-3. Effect of Alloying Elements on Steel Properties... 

The effect of alloying elements on K for Fe-based crystalline thin films has been reviewed by Hayashi et al. [37], It was summarized that K = 0 is expected in Fe-Ga-Si, Fe-Al-Ge, Fe-Co-Ga-Si and Fe-Co-Al-Ge, along with classical Fe-Ni and Fe-Al-Si. Consequently, the addition of Al, Si, Ga and Ge to Fe-based magnetic nanostructures may result in a further reduction of . However, a substantial amount of these additives is accompanied by a serious decrease in the saturation magnetization [38], making the Fe-based soft magnetic nanostructures featureless from the viewpoint of technological applications. 

Effects of alloying elements in magnesium alloys can be summarized as follows ... 

If PqAI2°3) < Pq2 < Pj)2, dissolution of the substrate into the liquid metal will occur until XAi satisfies equation (6.2) with ao = (Pq2)i/2. The equilibrium contact angle will be that of a Ag-AI alloy on A1203 (see Section 6.5 for the effect of alloying elements on wetting). 

We will consider first the carbide-forming metals Al, Si, Ti and Cr and then the ferrous metals Fe, Co, Ni and Pd that dissolve carbon. Finally, the effect of alloying elements will be discussed. 

Although several impurities are known to segregate in these boundaries, correlations have been made with essentially continuous films of iron carbide or segregated carbon. Maximum susceptibility occurs in the range of 0.005% C it is proposed that lower carbon contents do not Table 7.9 Effect of alloying elements on stress-corrosion resistance ... 

M.U. Macdonald and D.D. Macdonald, Theoretical Analysis ofthe Effects of Alloying Elements on Distribution Functions of Passive Breakdown, J. Electrochem. Soc., Vol 136, 1989, p 961-967... 

K. Osozawa, N. Okato, Y. Fukase, and K. Yokato, Effects of Alloying Elements on the Pitting Corrosion of Stainless Steel, Proceedings of the Fifth International Congress on Metallic Corrosion, National Association of Corrosion Engineers, 1974, p 270-274... 

K. OsozawaandN. Okato, Effect of Alloying Elements, Especially Nitrogen, on Initiation of Pitting in Stainless Steel, Passivity and Its Breakdown in Iron and Iron-Base Alloys, R.W. Staehle and H. Okada, Ed., National Association of Corrosion Engineers, 1976, p 135-139... 

Universite de Nancy, CEAC-France, Riole Nationale Superieure de Chimie de Toulouse, Metaleurop Recherche, Bright Euram Project BE-7297, Task 8 Effect of alloying elements on the mechanical properties, corrosion resistance arui passivation of the positive grid. Final Report, 1 January 1994 to 31 December 1997, Advanced Lead-Acid Battery Consortium, Research Triangle Park, NC, USA, 1998. 

A number of studies have evaluated the effects of alloying elements on the oxidation behaviour of Nb-Al alloys [132,136-141], In some cases the alloys formed alumina scales but none of the alloys were resistant over a broad enough range of exposure conditions to be considered for extensive application. This is particularly the case when the compitions are restricted to those which provide even marginal mechanical... 

Fig. 6.5. Effect of alloying element on the electrical resistivity of Fe-based alloys. (Adapted from Bozorth, 1951.)...

The temperature below which a ferrite surface layer forms on decarburization depends on the nature and concentration of other alloying elements in the steel, but, for plain carbon steels, can be taken to be 910 °C as for pure iron. Prediction of the effect of alloying elements on this temperature is complicated by the fact that the alloying elements will undergo either denudation or concentration at the surface during scaling. 

Success of the CCS model has been demonstrated by a large number of experimental measurements of low crevice pH values in a variety of alloys [9-14], including a rationalization of the effects of alloying elements in stainless steels by Oldfield and Sutton via the effect of these alloying elements on the pH needed to achieve a critical current density for passivation of 10 pA cm [39]. 

H. Ogawa, H. Omata, I. Itoh, H. Okada, Auger electron spectroscopic and electrochemical analysis of the effect of alloying elements on the passivation behavior of stainless steels. Corrosion 34 (1978) 52-60. 

Fig. 4.16 Effect of alloying elements on stainless steel anodic polarization curve.

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