Five typical metal materials for fashion jewelry

including 316L stainless steel

TA2 pure titanium

CoCrMo alloy

tungsten carbide and TaC system carbide

were investigated comparatively from physical properties

chemical properties

mechanical properties

process performance and safety performance.The results show that all the experimental materials belong to colorless with the highest brightness for CoCrMo alloy and the highest chromatic value for TaC system carbide.The five materials have excellent corrosion resistance in the artificial sweat

especially the highest corrosion potential for TA2 while the lowest for tungsten carbide.The higher hardness of the material presents the lower wear weightlessness rate in the wet erosion test

accordingly the glossiness on jewelry surface can be kept the longer.316 L

TA2 and CoCrMo alloy can adopt a variety of forming processes

in which 316L and TA2 alloy are more suitable for setting ornamental stones directly

and they can be colored by anodic oxidation process

by contrast

tungsten carbide and TaC system carbide can only be formed by powder metallurgy and linear cutting

which are unsuitable for setting stones directly.TA2 and CoCrMo alloys have the desirable biocompatibility among them.