21. Sometimes the metal was entirely incombustible, but when alloyed with osmium, it would volatilize. 22. The alloyed gold bars are rolled by presses to different thicknesses for different types of jewelry. 23. Indium can be alloyed with a wide range of other metals to lower their melting point. 24. Gold was often found alloyed with silver or other metals to produce various types of colored gold. 25. Quite often, precious metals were alloyed with less valuable substances as a means to deceive buyers. 26. In 1816, it was documented that iron alloyed with manganese was harder but not more brittle. 27. Ruthenium is seldom alloyed with metals outside the platinum group, where small quantities improve some properties. 28. The nickel-based blades are alloyed with aluminum and titanium to improve strength and creep resistance. 29. Palladium, platinum, or palladium alloyed with 5 % ruthenium can be used together with aluminium. 30. In their numismatic functions these metals must be alloyed with other metals to afford coins greater durability.
