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06 B - METALS (nonferrous)


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Nonferous metals
Alloys not based on iron, such as alluminum, copper, magnesium, nickel, titanium, zinc, and their alloys.
Aluminum
Has low density, high electrical and thermal conductivity, formability, good corrosion resistance due to the formation of a tough oxide film on its surface, and ability to be alloyed and strengthened to achieve good strength-to-weight ratios. >>> LIGHT ALUMINUM PLAIN SHOOTS DOWN HEAVY STEEL TANK.
Magnesium
Has very low density (lightest of the structural metals), propensity to oxidize (which can cause problems in processing), and low strength; however, it can be alloyed and strengthened by methods similar to those used for aluminum alloys to achieve respectable strength-to-weight ratios. >>> LIGHT AND FLAMMABLE METAL CONTAINS ENGINE BLOCK EXPLOSIONS.
Copper
Has high electrical and thermal conductivity. Alloyed with tin to form bronze and with zinc to form brass. >>> THE POINT OF BRONZE PIERCED THE BONE, AND DARKNESS VEILED HIS EYES
Nickel
IN MANY WAYS SIMILAR TO IRON - magnetic, similar E, yet it's much more corrosion resistant and performs well at high temperatures. Used in the following manner: (1) as an alloying ingredient in steel, e.g., stainless steel; (2) for plating of steel to resist corrosion; and (3) to form nickel-based alloys noted for high-temperature performance and corrosion resistance. >>> ALLOYED, PLATED PLATE SPITS ON CORROSION WITH GREAT CONTEMPT.
Titanium
Has high strength-to-weight ratio, corrosion resistance (due to the formation of a thin but tough oxide film), and high temperature strength. >>> LIGHT REACTION MAKES STRONG PLANES.
Zinc
HAS LOW MELTING POINT AND GOOD CORROSION RESISTANCE. Used for: (1) die castings - zinc is an easy metal to cast; (2) as a coating in galvanized steel; (3) as an alloying element with copper to form brass. >>> ZINC CASKETS BRING GREAT SORROW.
Lead and tin
Ductile metals with low melting point. Used for soldering due to their low melting temperatures, in radiation shielding, vibration damping, batteries, bearings. >>> TIN MAN POISON BABIES WITH LEAD PAINT.
Refractory metals
Metals that withstand high temperature service and used for parts of rocket engines, tool steels, resistance welding electrodes, jet engines: columbium (Cb), molybdenum (Mo), tantalum (Ta), and tungsten (W). Tungsten and Molybdenum oxidize, thus they need coating or vacuum. >>> HOT HEAT SHIELD OXIDISES IN OXYGEN ROCKETS.
Noble metals
Metals with high density, conductivity, corrosion resistance, and ductility. Used for jewellery due to their high cost. Chemically inactive metals such as copper, gold, platinum, and silver. >>> PRECIOUS NECKLACE STAYS THE SAME ON AN ELECTROCUTED NERO-ZOOPHILE.
Superalloys
Alloys with high strength, resistance to corrosion, and oxidation at elevated temperatures. Three types of superalloys exist: [1] Iron based. [2] Nickel-based. [3] Cobalt based. >>> STRONG SUPER ALLOY RESIST STRESS AND CORROSION.
Metal strengthening methods
(1) alloying to form solid solutions and two-phase structures which are stronger than the elemental metals; (2) cold working, in which the strain-hardened metal is stronger and harder than the unstrained metal; and (3) heat treatment - most of the commercial heat treatments are designed to increase the strength of the metal. >>> HEAT TREATED PHASE AND SOLUTION ALLOY STRENGTH HARDENS WHILE VIOLENTLY CRASHING skulls.