Multi-property evaluation of low Cu content Fe-Cu magnetic alloys

IF 5.3 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Research Bulletin Pub Date : 2025-02-13 DOI:10.1016/j.materresbull.2025.113374

Li Ping Tan , Karl P. Davidson , Mehmet Cagirici , Xuesong Xu , Shakti P. Padhy , V. Chaudhary , R.V. Ramanujan

{"title":"Multi-property evaluation of low Cu content Fe-Cu magnetic alloys","authors":"Li Ping Tan , Karl P. Davidson , Mehmet Cagirici , Xuesong Xu , Shakti P. Padhy , V. Chaudhary , R.V. Ramanujan","doi":"10.1016/j.materresbull.2025.113374","DOIUrl":null,"url":null,"abstract":"<div><div>Next generation magnetic materials used in high frequency rotating electrical machines, e.g., motors, require a good balance of magnetic, electrical and mechanical properties. Pure Fe has good magnetic properties but has insufficient resistivity and strength. Adding Cu to Fe can improve resistivity and strength. In this work, Fe-xCu (<em>x</em> = 1 to 4 wt %) alloys were studied. The Cu content was restricted to a maximum of 4 wt % to minimize detrimental effects to the magnetic properties. The mechanical properties were investigated using profilometry-based indentation plastometry (PIP) and micro tensile tests. A desirable doubling of yield strength and ultimate tensile strength was observed with increasing Cu content, from 317 to 801 MPa and 417 to ∼888 MPa respectively in tensile tests. Microhardness correspondingly increased from ∼225.7 to ∼368.2 HV. There was a three-fold increase in resistivity to <strong>∼</strong>28 to 30 µm.cm, as compared to Fe, while <em>M<sub>s</sub>, H<sub>c</sub></em> and <em>T<sub>c</sub></em> were in the range of 204 to 210.6 emu/g<em>,</em> 5.6 to 6.1 Oe and 758 to 762 °C, respectively. These alloys exhibit the desired good balance of magnetic, mechanical and electrical properties. Our results show that low Cu content Fe-Cu binary alloys are promising low-cost materials for next-generation electrical machines.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"187 ","pages":"Article 113374"},"PeriodicalIF":5.3000,"publicationDate":"2025-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Materials Research Bulletin","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0025540825000820","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}

引用次数: 0

Abstract

Next generation magnetic materials used in high frequency rotating electrical machines, e.g., motors, require a good balance of magnetic, electrical and mechanical properties. Pure Fe has good magnetic properties but has insufficient resistivity and strength. Adding Cu to Fe can improve resistivity and strength. In this work, Fe-xCu (x = 1 to 4 wt %) alloys were studied. The Cu content was restricted to a maximum of 4 wt % to minimize detrimental effects to the magnetic properties. The mechanical properties were investigated using profilometry-based indentation plastometry (PIP) and micro tensile tests. A desirable doubling of yield strength and ultimate tensile strength was observed with increasing Cu content, from 317 to 801 MPa and 417 to ∼888 MPa respectively in tensile tests. Microhardness correspondingly increased from ∼225.7 to ∼368.2 HV. There was a three-fold increase in resistivity to ∼28 to 30 µm.cm, as compared to Fe, while M_s, H_c and T_c were in the range of 204 to 210.6 emu/g, 5.6 to 6.1 Oe and 758 to 762 °C, respectively. These alloys exhibit the desired good balance of magnetic, mechanical and electrical properties. Our results show that low Cu content Fe-Cu binary alloys are promising low-cost materials for next-generation electrical machines.

Abstract Image

查看原文本刊更多论文

求助全文

约1分钟内获得全文求助全文

来源期刊

Materials Research Bulletin 工程技术-材料科学：综合

CiteScore

9.80

自引率

5.60%

发文量

372

审稿时长

42 days

期刊介绍： Materials Research Bulletin is an international journal reporting high-impact research on processing-structure-property relationships in functional materials and nanomaterials with interesting electronic, magnetic, optical, thermal, mechanical or catalytic properties. Papers purely on thermodynamics or theoretical calculations (e.g., density functional theory) do not fall within the scope of the journal unless they also demonstrate a clear link to physical properties. Topics covered include functional materials (e.g., dielectrics, pyroelectrics, piezoelectrics, ferroelectrics, relaxors, thermoelectrics, etc.); electrochemistry and solid-state ionics (e.g., photovoltaics, batteries, sensors, and fuel cells); nanomaterials, graphene, and nanocomposites; luminescence and photocatalysis; crystal-structure and defect-structure analysis; novel electronics; non-crystalline solids; flexible electronics; protein-material interactions; and polymeric ion-exchange membranes.