Aging behavior of largegauge 82B steel hot-rolled wire in winter

doi:10.13251/j.issn.0254-6051.2021.04.016

Abstract

Abstract: Mechanical properties of ø12.5 mm 82B steel hot-rolled wire aged for 0 to 30 d were studied under the condition of -15 ℃ to -23 ℃ in North China in winter, and different artificial aging experiments were also comparatively carried out. The results show that there is no obvious relationship between tensile strength of the 82B steel wire and aging method. The percentage reduction of area has a significant increase after natural aged for 0 d to 10 d, and tends to be stable during 10 d to 30 d. The mechanical properties obtained by artificial aging at 200 ℃ for 2 h were close to those obtained after natural aging treatment for 10 d. Therefore, the mechanical properties after natural aging can be predicted by artificial aging treatment.

Key words: 82B steel hot-rolled wire, aging, percentage reduction of area, fracture

CLC Number:

TG142

Wang Haibin, Jia Jianping, Zhang Chaolei, Lu Weiyong, Wang Jianzhong, Li Na. Aging behavior of largegauge 82B steel hot-rolled wire in winter[J]. Heat Treatment of Metals, 2021, 46(4): 95-99.

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