Common Alloys

Syltheiin XLT (Dow Corning Coiporation). A sihcone polymer (Dimethyl Polysiloxane) recommended temperature range —70°C to 250°C odorless low in acute oral toxicity noncorrosive toward metals and alloys commonly found in heat transfer systems,... 

Approximately 90% of all RPDs are now cast from base metal alloys containing principally chromium, cobalt and nickel, with chromium being the element present in all such alloys. Commonly, these cast chromium alloys contain various alloying elements, typically <5% Mo, <1% Fe, 25-30% Cr and the balance Co although there are some widely used alloys containing... 

Table 4.48 Titanium and titanium alloys commonly used in industrial applications...

Table 2.5 Thermal conductivities of metals and alloys commonly used in electronic devices...

When the lead—antimony alloy commonly used for the positive grids of lead—acid batteries was substituted for lead—calcium alloy, the cycle life of the batteries decreased dramatically. Obviously, antimony influenced the electrochemical behaviour of Pb02- One of the hypotheses was that it affected the hydration of Pb02 PbO(OH)2 particles. This hypothesis was verified through oxidation of Pb—Sb alloys with different content of antimony and determining the water content in the anodic Pb02 layer formed. The obtained results of these investigations are presented in Fig. 10.27 [34]. 

Table 2.5. Thermal Conductivities of Metals and Alloys Commonly Used in Electronic Devices and Assemblies...

The physical basis of the use of Fe— Si alloys, commonly called silicon steels, as soft magnetic materials is the fact that both the magnetocrystalline anisotropy isTi and the magnetostriction parameters >.100 and Xm of Fe approach zero with increasing Si content (see Fig. 4.3-5a). The lower the magnitude of these two intrinsic magnetic properties is, the lower are the coercivity He and the AC magnetic losses The total losses ppe consist of the static hysteresis losses p y and the dynamic eddy current losses pw which may be subdivided into a classical p c and an anomalous p eddy current loss term. 

Table 4.13 Composition of types of lead and lead alloys commonly used in the United Kingdom...

The stencil is simply a sheet of metal or alloy (commonly Mo, Ni, brass, or stainless steel) having the apertures formed in them. The apertures can be created by one or a combination of the following techniques ... 

Three different adherend materials were considered in this work. The first was 2024-T3, which is a high-strength aluminium alloy commonly used in the aerospace industry. The stress-strain curves shown in Fig. 3 were derived from data taken from the American Society of Materials (ASM) Handbook and, as can be seen, a bi-linear approximation to the material properties could be assumed. Clearly there is a severe degradation in properties shown at 204°C (400°F). 

Applications Main selection criteria of users Alloys commonly selected by users Comments... 

The resistivity of freshwater is between 1000 and 3000 fi cm , depending on its salinity. The resistivity of seawater is only lOft cm . Seawater, therefore, facilitates ionic conductivity. However, for alloys commonly used for marine applications, the two most common forms of corrosion are pitting corrosion and galvanic corrosion. 

Filler metal (solder) can be in preforms, wire, foil, coatings, slugs and pastes in a variety of metai alloys, commonly tin-lead, tin-zinc, lead-silver, zinc-aluminum and cadmium-siiver. The seiection is based upon the metals to be soldered. 

Why are zinc alloys commonly used for the manufacture of die cast components and give some t q)ical examples ... 

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