Effects of Aging Treatment and Processing Amount on Properties of Cu-Cr-Zr Alloy after Continuous Extrusion

He Jianhui

doi:10.15980/j.tzzz.2022.06.021

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Effects of Aging Treatment and Processing Amount on Properties of Cu-Cr-Zr Alloy after Continuous Extrusion
Vol. 42, Issue 6, Pages: 777-780(2022)
Published： 2022 ，
DOI： 10.15980/j.tzzz.2022.06.021

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He Jianhui. Effects of Aging Treatment and Processing Amount on Properties of Cu-Cr-Zr Alloy after Continuous Extrusion. [J]. Special Casting & Nonferrous Alloys 42(6):777-780(2022)
DOI：

He Jianhui. Effects of Aging Treatment and Processing Amount on Properties of Cu-Cr-Zr Alloy after Continuous Extrusion. [J]. Special Casting & Nonferrous Alloys 42(6):777-780(2022) DOI： 10.15980/j.tzzz.2022.06.021.

摘要

对采用“非真空上引连铸+连续挤压”工艺试制出的Cu-Cr-Zr合金杆进行时效处理和冷加工试验，研究了时效温度和减径量对其硬度、电导率及抗拉强度的影响。结果表明，随着时效温度提高，经连续挤压和减径的Cu-Cr-Zr合金杆软化前硬度和抗拉强度先增大后减小，电导率则逐步提高并最终趋于稳定；连续挤压+拉拔减径+时效后的Cu-Cr-Zr合金杆，随着减径量增大，其软化前硬度和软化前强度逐步增大，软化后的硬度和软化前的电导率则基本保持稳定。

Abstract

The effects of aging temperature and processing amount on hardness

conductivity and tensile strength of Cu-Cr-Zr alloy wire rod prepared by “non-vacuum up-casting+continuous extrusion” process were investigated by aging treatment and cold working test. The results indicate that with the increase of aging temperature

the hardness and tensile strength of Cu-Cr-Zr alloy wire rod before softening suffering continuous extrusion and diameter reduction are gradually increased and then decreased

while the conductivity is increased and eventually tend to stable. The hardness and strength before softening of Cu-Cr-Zr alloy wire rod after continuous extrusion+drawing reduction+aging is gradually increased with the increase of processing amount

while the hardness after softening and conductivity before softening remain stable.