Hard alloys are materials made by combining two or more metals to enhance their strength and durability. These alloys are designed to withstand wear and tear, making them ideal for applications in tools, machinery, and construction. Common examples include tungsten carbide and high-speed steel, which are used in cutting tools and industrial equipment. The properties of hard alloys depend on their composition and the manufacturing process. By adjusting the ratios of the metals involved, manufacturers can create alloys with specific characteristics, such as increased hardness or resistance to corrosion. This versatility makes hard alloys essential in various industries, including aerospace and automotive.