摘要
对用于汽轮发电机转子槽楔材料Cu-Ni-Cr-Be-Ti铜合金进行了一系列的热处理强化工艺试验。试验结果表明,该合金经(950±10)℃×1·5h固溶+25%～35%的冷变形+(520±10)℃×2h时效处理后,其硬度为256HB,导电率为47·23%IACS,室温下抗拉强度775MPa,屈服强度678MPa,伸长率20%,其物理性能和力学性能均能满足服役条件苛刻的汽轮发电机转子槽楔的使用要求,对于研究开发槽楔合金材料具有重要意义。
Strengthening process tests were carried out on the Cu-Ni-Cr-Be-Ti alloy used for slot wedge in turbo-generator rotor. The results show that after solution treated at （950 ± 10） ℃ for 1.5 h,cold deformed with the degree of 25% - 35%, then aged at （520 ±10） ℃ for 2 h, the hardness and electric conductivity of the Cu-Ni-Cr-Be-Ti alloy can achieve 256 HB and 47.23 % IACS respectively, and its strength σb and σ 0. 2 and its elongation δ5 can reach 775 MPa,678 MPa and 20% respectively under ambient temperature. The mechanical and physical properties of the alloy can meet the technical requirement of slot wedge used in harsh terms.
出处
《金属热处理》
EI
CAS
CSCD
北大核心
2007年第8期80-83,共4页
Heat Treatment of Metals
基金
江苏教育厅高新技术项目(JH01-072)
