共搜索到18660条信息，每页显示10条信息，共1866页。用时：0小时0分0秒672毫秒
; 文献标志码:A Microstructure evolution and properties of Cu-Ni-Si alloy during continuous extrusion process SUN Jian1, LIU Ping1, 2, LIU Xin-kuan2, CHEN Xiao-hong2, HE Dai-hua2, MA... for Science and Technology, Shanghai 200093, China) Abstract: The microstructure evolution and properties of Cu-Ni-Si alloy during continuous extrusion were investigated by using optical microscopy......
Recrystallization Behavior of Re-aged Cu-Ni-Si Alloy ZHAO Dong-mei1,LEI Jing-guo2,LIU Ping1,JING Xiao-tian2 (1.School of Materials Science and Engineering,Henan University of Science & Technology... of the re-aged Cu-Ni-Si alloy are discussed. The results indicate that the pre-aging process for Cu-Ni-Si alloy was responsible to the significant strengthening effect in re-aging process, and the re......
性能 Table 3 Comprehensive properties of different process schedules of Cu-Ni-Si alloy 图1 Cu-Ni-Si合金不同工艺制度的显微组织 Fig. 1 Microstructures of different process schedules of Cu-Ni-Si alloy 图2所示为低浓度Cu-Ni-Si合金不同工艺制度的TEM像.从图2中可以看出,经时效处理后,合金基体组织中弥散分布着细小的第二相颗粒,这也是Cu-Ni-Si合金经不同时效处理后具有优异综合性能的重要原因.比较四种工艺制度的微观组织发现,ROSA,RSA,ROSCA三种工艺中第二相粒子均弥散在基体组织中,但ROSA,RSA组合工艺中第二相粒子数目数量较少且尺寸较大,如图2(a)和(b)所示,这主......
; Kinetics of phase transformation of solution-treated Cu-Ni-Si alloy during aging treatment WANG Jun-feng1, JIA Shu-guo1, 2, CHEN Shao-hua3, LIU Ping1, SONG Ke-xing1, LIU Hong-xun1 (1... and Technology, Luoyang 471003, China; 3. CHINALCO Luoyang Copper Co., Ltd., Luoyang 471039, China) Abstract: The transformation ratio of new phase in Cu-Ni-Si alloy was calculated in terms......
及热轧组织 Fig. 1 As-cast microstructures and hot rolling microstructures of Cu-Ni-Si alloy 图2 Cu-Ni-Si合金热轧态晶粒组织及晶界大小分布 Fig. 2 Microstructures and distribution of grain orientation after...化效果,后续工艺研究主要针对合金2. 表1 Cu-Ni-Si合金在铸态和热轧态的性能 Table 1 Properties of as-cast and hot rolling of Cu-Ni-Si alloy 2.2 固溶工艺对合金组织-性能的影响 图3所示为Cu-3.2Ni-0.75Si合金在不同固溶条件下的金相显微组织.由图3可知,800 ℃固溶时,基......
deformation or ageing microstructural parameters and hence of recovery-recrystallization kinetics. Key words: Cu-Ni-Si alloy; microstructure; XRD line profile analysis; Materials Analysis Using... and their values are (0.24-1.72)×1011 cm-2 for Cu-2.65Ni-0.6Si and (0.28-1.31)×1011 cm-2 for Cu-2.35Ni-0.6Si-0.6Cr alloy, respectively. It can be assumed that the chromium addition to ternary Cu-Ni-Si......
Dynamics of phase transformation of Cu-Ni-Si alloy with super-high strength and high conductivity during aging LEI Qian(雷 前)1, LI Zhou(李 周)1, 2, PAN Zhi-yong(潘志勇)1, WANG Ming-pu(汪明朴)1... that the precipitates are β-Ni3Si and δ-Ni2Si phases. Key words: Cu; Cu-Ni-Si alloy; dynamics; phase transformation; precipitation; electrical conductivity 1 Introduction Cu-Ni-Si alloys are used......
Cu-Ni-Si合金时效早期动力学研究 井晓天1,赵冬梅2,雷静果1,郅晓3,刘平2 (1.西安理工大学,材料科学与工程学院,陕西,西安,710048;2.河南科技大学,材料科学与工程学院,河南,洛阳,471003;3.河南洛阳浮法玻璃集团公司,河南,洛阳,471000) 摘要:通过对固溶态Cu-Ni-Si合金时效时电阻变化规律的分析,研究了合金时效早期的析出行为,并借助透射电镜观察合金时效析出相的组织形态.根据Avrami经验公式导出了合金在一定温度下时效的Avrami相变动力学经验方程,在此基础上计算出合金在不同温度下时效的相变开始时间. 关键词:Cu-Ni-Si合金; 时效; 电阻率; 体积分数; 相变动力学; [全文内容正在添加中] ......
......
Microstructural Changes of Cu-Ni-Si Alloy during AgingQiming DONG, Dongmei ZHAO, Ping LIU, Buxi KANG and Jinliang HUANG Department of Materials Engineering, Henan University of Science and Technology...) and Cu-1.0Ni-0.25Si (wt pct) alloys from 723 to 823 K is studied. After an incubation period strengthening appears which is due to precipitates in the Cu-l.ONi-0.25Si (wt pct) alloy. On other hand......
