珠光体钢丝冷变形加工硬化行为研究

发布时间：2018-06-05 04:08

  本文选题：珠光体钢丝 + 抗拉强度　； 参考：《热加工工艺》2017年01期

【摘要】：采用不同含碳量的热处理后镀铜钢丝,主要研究了珠光体钢丝在冷拉拔变形过程中的抗拉强度与真应变的关系,并探讨了珠光体钢丝的加工硬化行为。结果表明:当真应变小于2.12时,钢丝的抗拉强度随着真应变的增加呈线性增加趋势。珠光体钢丝的加工硬化过程分为三个阶段:真应变ε1.5时,材料加工硬化率随真应变的增加而下降,加工硬化指数较低;1.5≤ε≤4.0时,加工硬化率随真应变的增加而增加,加工硬化指数快速升高;真应变ε4.0后,加工硬化率急剧下降,加工硬化指数呈抛物线下降。
[Abstract]:The relationship between tensile strength and true strain of pearlite steel wire during cold drawing and deformation was studied by using copper plated steel wire with different carbon content. The work hardening behavior of pearlite steel wire was also discussed. The results show that when the true strain is less than 2.12, the tensile strength of steel wire increases linearly with the increase of true strain. The work hardening process of pearlite steel wire is divided into three stages: when true strain 蔚 1.5, the work hardening rate decreases with the increase of true strain, and when the work hardening index is lower than 1.5 鈮，

本文编号：1980428