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非真空熔铸Cu-Cr-Zr合金的热变形行为丁宗业1,贾淑果1,2,郭望望1,王俊峰1,刘平11. 河南科技大学材料科学与工程学院2. 河南省有色金属材料科学与加工技术重点实验室摘 要:采用Gleeble-1500热模拟实验机对Cu-0.92Cr-0.068Zr合金进行高温热压缩实验,研究该合金在变形温度为500~800℃,应变速率为0.01~1 s-1工作条件下的流变应力行为和组织演变.结果表明:变形温度和应变速率对合金的高温变形有显著影响,流变应力随变形温度的升高而降低,随应变速率的降低而减小;流变曲线表现出动态回复和动态再结晶两种特征.可用包含Zener-Hollomon参数的Arrhenius双曲正弦函数算出Cu-0.92Cr-0.068Zr热变形激活能和高温热变形流变应力本构方程.合金形变组织......
Trans. Nonferrous Met. Soc. China 22(2012) s656-s660 Microforming of superplastic 5083 aluminum alloy Md. Abu Mowazzem HOSSAIN1, Sung-Tae HONG1, Kyu-Yeol PARK1, Young-Sang NA2 1. School of Mechanical...: The mechanical behavior of superplastic 5083 aluminum alloy during microforming process was investigated by finite element analysis. A micro V-groove die was modeled to analyze the effects of forming......
Study on Thermomagnetic Treatment Fe-25.5Cr-12Co Permanent Magnetic Alloy Zhen Liang1,GAO Run-sheng2,ZHU Dan-yang1,SUN Xue-yin1,SHAO Wen-zhu1,XU Ren-gen1 (1.Technology and Development Centre... Fe-25.5Cr-12Co alloy by different process of thermomagnetic treatment were investigated. It is found that magnetic properties are sensitive to parameters of thermomagnetic treatment process in magnetic......
for lead frame. WANG et al [6] analyzed the influence of DC electric current on the hardness of thermally aged Cu-Cr-Zr alloy. HUANG and MA [7] analyzed the phases in Cu-Cr-Zr alloy. Cu-Cr-Sn-Zn alloy... the Levenberg-Marquardt algorithm to analyze the hardness of a lead frame Cu-Cr-Zr copper alloy. LI et al [14] adopted a full-factorial design method to collect sample datasets. In Ref.[15], martensite......
is the theory of the characteristic crystals and points out direction of alloy design. The theory has been successfully applied to Ag–Cu alloys [1, 2] and Au–Cu alloys [3–6] in FCC structure, Ti–Al... J. Cent. South Univ. (2018) 25: 1573-1581 DOI: https://doi.org/10.1007/s11771-018-3849-x Derivation and application of concentration formula of alloy genes of DO3-type in BCC alloy systems PENG......
Ni,Si元素配比对Cu-Cr-Zr合金组织与性能的影响周清泉,帅歌旺,刘建彬南昌航空大学航空制造工程学院摘 要:在Cu-Cr-Zr合金中添加Ni,Si元素,制备Cu-0.6Cr-0.15Zr,Cu-2.8Ni-0.7Si-0.6Cr-0.15Zr(w(Ni)/w(Si)=4∶1...长条形,椭圆形及圆盘状.时效处理后,与Cu-0.6Cr-0.15Zr合金相比,加入Ni,Si元素后合金硬度从131HV上升到240HV以上;导电率从88%IACS左右降到40%IACS左右.Ni,Si元素配比对导电率的峰值影响有限,在4%IACS9%IACS;对硬度峰值的影响在20HV30HV之间.关键词:Cu-Ni-Si-Cr-Zr合金;导电率;硬度;......
,Changsha 410083, P. R. China) 摘要:Three Al-Cu-Mg-Fe-Ni-Sc-Zr ingot metallurgy alloys with different compositions had been prepared. The hardness variations of cold-rolled alloy plates during annealing...(Sc, Zr) particles were improved. And the tensile strength of alloy did not improve obviously with rich iron and nicker addition. 关键词:Al-Cu-Mg-Fe-Ni alloy phase Al3(Sc; Zr) tensile property annealing......
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, 17(2): 384-388. [12] VINOGRADOV A, PATLAN V, SUZUKI Y, KITAGAWA K, KOPYLOV V I. Structure and properties of ultra-fine grain Cu-Cr-Zr alloy produced by equal-channel angular pressing [J]. Acta..., MORRIS D G. Recrystallization mechanisms in a Cu-Cr-Zr alloy with a bimodal distribution of particles [J]. Mater Sci Eng A, 1994, A188: 255-265. ......
