The organisation of the city appears to have differed from that of other Maya sites and appears to have been geared towards a specialised coastal trade in salt.
Steel is a solid solution, a subtype of chemical mixtures that involve two or more molecules in a solid state that combine to form a single substance while retaining their individual identities. The component metals making up steel are not chemically bonded together. Continue Reading.
cluded that the presence of boron in steel can be effective up to 0.0030%. This is due to that boron is an interstitial element and has a very low solubility in Î±-solid solution (<0.003%) [1]. In order to raise the efficiency of the ac- tion of boron on the hardness of steel it is necessary to add titanium, which possesses a higher affinity for nitro- gen than boron and also forms nitrides in liquid phase. So, sufficient Ti was added to combine with the nitrogen to forming TiN. Therefore, in steel containing 0.0055% B, the titanium content is not sufficient to combine with nitrogen.