CAS OpenIR  > 中科院上海应用物理研究所2011-2018年
Effect of direct current pulses on mechanical and electrical properties of aged Cu-Cr-Zr alloys
Wang, W; Li, RG; Zou, CL; Chen, ZN; Wen, W; Wang, TM; Yin, GM; Wang, TM (reprint author), Dalian Univ Technol, Sch Mat Sci & Engn, Key Lab Solidificat Control & Digital Preparat Te, 2 Linggong Rd, Dalian 116024, Liaoning, Peoples R China.
2016
Source PublicationMATERIALS & DESIGN
ISSN0261-3069
Volume92Issue:-Pages:135—142
Subtype期刊文献
AbstractIn this work, the response of Cu-Cr-Zr alloys to aging under direct current (DC) pulses was investigated. The results demonstrated that well-balanced mechanical properties and electrical conductivity can be achieved in case the alloys were properly treated. The aging behavior of Cu-Cr-Zr alloys is sensitive to DC pulses in the temperature range between 400 and 450 degrees C, whereas at temperatures out of this range, DC pulses have minor influences. The hardness of aged Cu-Cr-Zr alloy is increased by DC pulses while the electrical conductivity is slightly decreased. The peak hardness is increased by 10 HV after aging at 400 C for 1 h. With the imposition of DC pulses, the precipitate size of Cr rich precipitates in aged Cu-Cr-Zr alloys is reduced from 238 nm to 178 nm, exhibiting stronger Orowan strengthening. After aging at 450 degrees C for 2 h with DC pulses, the Cu-Cr-Zr alloy has an average tensile strength of 609 MPa, elongation of 12.8%, and electrical conductivity of 77.6% IACS. A retarding effect of DC pulses on precipitation process is confirmed by synchrotron X-ray diffraction analysis, which is responsible for the slight decrease in electrical conductivity. (C) 2015 Elsevier Ltd. All rights reserved.
KeywordSevere Plastic-deformation Thermomechanical Treatment Contact Wire Microstructure Precipitation Strength Behavior Recrystallization Metals Copper
DOI10.1016/j.matdes.2015.12.013
Indexed BySCI
Language英语
WOS IDWOS:000369191900018
Citation statistics
Cited Times:11[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/25695
Collection中科院上海应用物理研究所2011-2018年
Corresponding AuthorWang, TM (reprint author), Dalian Univ Technol, Sch Mat Sci & Engn, Key Lab Solidificat Control & Digital Preparat Te, 2 Linggong Rd, Dalian 116024, Liaoning, Peoples R China.
Recommended Citation
GB/T 7714
Wang, W,Li, RG,Zou, CL,et al. Effect of direct current pulses on mechanical and electrical properties of aged Cu-Cr-Zr alloys[J]. MATERIALS & DESIGN,2016,92(-):135—142.
APA Wang, W.,Li, RG.,Zou, CL.,Chen, ZN.,Wen, W.,...&Wang, TM .(2016).Effect of direct current pulses on mechanical and electrical properties of aged Cu-Cr-Zr alloys.MATERIALS & DESIGN,92(-),135—142.
MLA Wang, W,et al."Effect of direct current pulses on mechanical and electrical properties of aged Cu-Cr-Zr alloys".MATERIALS & DESIGN 92.-(2016):135—142.
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