Generating a mechanism of delamination in high carbon steel wire by experimental drawing

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Delamination tends to occur more frequently in a large wire than in a fine wire. As a result of observing the starting point of delamination with SEM, it turns out that delamination occurs as a result of a combination of micro cracking of the surface part, and delamination is controlled by removing the surface layer. Furthermore, the appearance of transformation of the pearlite grains is different after drawing. In a fine wire, the pearlite grains can be more easily rotated in the drawing direction than in a large wire.

Description

Delamination tends to occur more frequently in a large wire than in a fine wire. As a result of observing the starting point of delamination with SEM, it turns out that delamination occurs as a result of a combination of micro cracking of the surface part, and delamination is controlled by removing the surface layer. Furthermore, the appearance of transformation of the pearlite grains is different after drawing. In a fine wire, the pearlite grains can be more easily rotated in the drawing direction than in a large wire.

Additional information

Author(s)

Yohhei Suzuki, Motoo Asakawa, Hiroyuki Mizuno, Naoki Itou, and Ikuo Ochiai, Waseda University, Japan.

Publication/Event/Pages

Paper presented at WAI 74th Annual Convention, Cleveland, OH USA. Published in WJI, Oct. 2005, pp. 70-72.

Year

2004