Bronze aluminium

Metal considered platinum, rhodium, silver aluminium bronzes, tin bronzes, gunmetals brasses, nickel silvers Nickel Lead, On and soft solders and cast iron... 

Fig. 2.24 Type 2 behaviour decreasing corrosion with increasing temperature and concentration, e.g. (a) Fe-15Si in H SO, and (b) aluminium bronzes in H,POj. Iso-corrosion lines at O.lg...

Example 3. Aluminium bronze (Cu-7Al-3Fe) in H3PO4 follows the equation ... 

Aluminium-bronzes Aluminium-bronzes usually contain 5-10% Al, the structure being duplex when more than about 8% Al is present. Plain Cu-Al... 

Despite these qualifications copper and its alloys are used extensively and successfully in much chemical equipment. Uses include condensers and evaporators, pipelines, pumps, fans, vacuum pans, fractionating columns, etc. Tin-bronzes, aluminium-bronzes and silicon-bronzes are used in some circumstances because they present better corrosion resistance than copper or brasses. 

Remarkably little has been published on corrosion fatigue crack propagation in copper and its alloys. In general little or no influence of marine environments has been observed in crack propagation experiments on manganese and nickel-aluminium bronzes although the frequencies employed were quite high (> 2.5 Hz) ... 

Mshana, J. S., Vosikovsky, O. and Sahoo, M., Corrosion fatigue behaviour of nickel-aluminium bronze alloys , Canadian Metallurgical Quarterly, 23, 7-15 (1984)... 

In cases where very high adherence is necessary an undercoating of sprayed molybdenum is applied. Owing to the volatile nature of its oxide this metal presents a clean surface to the workface and with most metals (except copper) very high adhesion is obtained. To a limited extent arc-sprayed aluminium bronze will also form a strongly adherent base coating. 

Anthrone has been prepared by the reduction of anthra-quinonc with tin and hydrochloric acid,1 and with aluminium bronze.2... 

The main alloys of copper are the brasses, alloyed with zinc, and the bronzes, alloyed with tin. Other, so-called bronzes are the aluminium bronzes and the silicon bronzes. 

Aluminium (a) Aluminium Bronze Brass (b) Cast Iron (c) Copper Gunmetal and Bronze (d) High Si Iron (14% Si) (c) Lead Mild Steel BSS 15 Nickel (cast) ... 

Mild steel does not cope with caustic soda solutions, and stainless steel has limitations at higher temperatures. Aluminium bronze, copper, nickel, and nickel — copper alloys may... 

For all gases (chlorine included) the so-called conical valve of aluminium bronze can be used. It can be made cheaply by any skilled mechanic (Fig. 28). 

Material alloys based on aluminium, bronze, aluminium bronze and nickel, may also be considered for temperatures as low as-196 °C (-320 °F). 

Bronze UNS C87200 (silicon bronze), C90700 or C92200 (tin bronze), C95200 (aluminium bronze) or C95800 (nickel aluminium bronze)... 

Originally aluminium was employed in the form of fine powder ( aluminium bronze ). It appeared later that such a high degree of sub-division is unnecessary and good results may also be achieved with aluminium filings, shavings and especially... 

Aluminium bronze is an alloy of aluminium with copper, containing from 2 to 11 per cent, of the former metal. It resembles gold in colour, and is employed in the manufacture of imitation jewellery. 

---