論文
細線伸線材の表層部付加的せん断ひずみ層が引張り強さと延性に与える影響
―引抜き材における表層部付加的せん断ひずみ層の研究 第1報―
2006 年 47 巻 549 号 p. 953-957
詳細
2006 年 47 巻 549 号 p. 953-957
Fine wires approximately on the order of 0.1 mm in diameter have become popular for mechanical and electrical applications. In general, it is well known that finely drawn wires have high strength while maintaining ductility. It has been determined that a hardened layer of approximately 0.04 mm depth, referred to as the “additional shear strain layer,” is generated beneath the surface layer of fine wires during drawing. By performing tensile tests on fine wires, with and without the additional shear strain layer, the effect of this layer on the strength and ductility of fine wires was investigated. The tensile strength decreased as the surface layer was removed in all the wires. The additional shear strain layer affected the tensile strength of the fine wires markedly.
