ZE41 alloy is a magnesium casting alloy containing zirconium, rare earths and zinc. This alloy is well-suited for high integrity castings that are operated at ambient temperatures or up to 149°C (300°F). It is easily weldable and pressure-tight.
ZK61 alloy is a Mg-Zn-Zr alloy having higher creep resistance and good tensile properties at both room and elevated temperatures. This alloy is normally used in T6 tempers and susceptible to microporosity. It is not weldable, and hence its practical applications are severely restricted.
A working transparent speaker has been produced that uses ions, rather than electrons, to carry the electrical charge.
By G.P. Thomas
30 Aug 2013
Coining is described as a closed die forging process in which pressure is applied on the surface of the forging in order to obtain closer tolerances, smoother surfaces and eliminate draft.
Age hardening, also known as precipitation hardening, is a type of heat treatment that is used to impart strength to metals and their alloys.
Decarburization is a surface degradation phenomenon in the forging and heat treating of steels. Decarburization may be described as a metallurgical process in which the surface of steel is depleted of carbon by heating above the lower critical temperature or by chemical action.
Descaling is a process of removing oxide deposits from a heated stock, either before or during forging operations. Physical methods for descaling include use of wire brushes, extra blows, scraping devices, polishing or blasting.
Auxiliary operations are those processes that are performed on forgings to obtain properties like surface conditions or shapes that cannot be achieved in regular forging operations.
Swedish researchers have conducted an experiment that confirms the existence of a new artificial element with an atomic number of 115 - temporarily named ununpentium.
By Will Soutter
28 Aug 2013
Rheology refers to the study of flow and deformation of materials under imposed stress.