Hot Deformation Behavior and Processing Map of High-Strength Nickel Brass
The flow behavior of a new kind of high-strength nickel brass used as automobile synchronizer rings was investigated by hot compression tests with a Gleeble-3500 isothermal simulator at strain rates ranging from 0.01 to 10 s<sup>−1</sup> and a wide deformation temperature range of 873–10...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-06-01
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| Series: | Metals |
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| Online Access: | https://www.mdpi.com/2075-4701/10/6/782 |
| _version_ | 1797565503897600000 |
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| author | Qiang Liang Xin Liu Ping Li Xianming Zhang |
| author_facet | Qiang Liang Xin Liu Ping Li Xianming Zhang |
| author_sort | Qiang Liang |
| collection | DOAJ |
| description | The flow behavior of a new kind of high-strength nickel brass used as automobile synchronizer rings was investigated by hot compression tests with a Gleeble-3500 isothermal simulator at strain rates ranging from 0.01 to 10 s<sup>−1</sup> and a wide deformation temperature range of 873–1073K at intervals of 50 K. The experimental results show that flow stress increases with increasing strain rate and decreasing deformation temperature, and discontinuous yielding appeared in the flow stress curves at higher strain rates. A modified Arrhenius constitutive model considering the compensation of strain was established to describe the flow behavior of this alloy. A processing map was also constructed with strain of 0.3, 0.6, and 0.9 based on the obtained experimental flow stress–strain data. In addition, the optical microstructure evolution and its connection with the processing map of compressed specimens are discussed. The predominant deformation mechanism of Cu-Ni-Al brass is dynamic recovery when the deformation temperature is lower than 973 K and dynamic recrystallization when the deformation temperature is higher than 973 K according to optical observation. The processing map provides the optimal hot working temperature and strain rate, which is beneficial in choosing technical parameters for this high-strength alloy. |
| first_indexed | 2024-03-10T19:14:07Z |
| format | Article |
| id | doaj.art-8123805f4a8249618d50c31b709f9ee5 |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-10T19:14:07Z |
| publishDate | 2020-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metals |
| spelling | doaj.art-8123805f4a8249618d50c31b709f9ee52023-11-20T03:35:16ZengMDPI AGMetals2075-47012020-06-0110678210.3390/met10060782Hot Deformation Behavior and Processing Map of High-Strength Nickel BrassQiang Liang0Xin Liu1Ping Li2Xianming Zhang3Engineering Research Center for Waste Oil Recovery Technology and Equipment of Ministry of Education, Chongqing Technology and Business University, Chongqing 400067, ChinaCollege of Material Science and Engineering, Chongqing University, Chongqing 400044, ChinaCollege of Mechanical Engineering, Chongqing Technology and Business University, Chongqing 400067, ChinaEngineering Research Center for Waste Oil Recovery Technology and Equipment of Ministry of Education, Chongqing Technology and Business University, Chongqing 400067, ChinaThe flow behavior of a new kind of high-strength nickel brass used as automobile synchronizer rings was investigated by hot compression tests with a Gleeble-3500 isothermal simulator at strain rates ranging from 0.01 to 10 s<sup>−1</sup> and a wide deformation temperature range of 873–1073K at intervals of 50 K. The experimental results show that flow stress increases with increasing strain rate and decreasing deformation temperature, and discontinuous yielding appeared in the flow stress curves at higher strain rates. A modified Arrhenius constitutive model considering the compensation of strain was established to describe the flow behavior of this alloy. A processing map was also constructed with strain of 0.3, 0.6, and 0.9 based on the obtained experimental flow stress–strain data. In addition, the optical microstructure evolution and its connection with the processing map of compressed specimens are discussed. The predominant deformation mechanism of Cu-Ni-Al brass is dynamic recovery when the deformation temperature is lower than 973 K and dynamic recrystallization when the deformation temperature is higher than 973 K according to optical observation. The processing map provides the optimal hot working temperature and strain rate, which is beneficial in choosing technical parameters for this high-strength alloy.https://www.mdpi.com/2075-4701/10/6/782nickel brasshot deformationconstitutive modelprocessing mapworkability |
| spellingShingle | Qiang Liang Xin Liu Ping Li Xianming Zhang Hot Deformation Behavior and Processing Map of High-Strength Nickel Brass Metals nickel brass hot deformation constitutive model processing map workability |
| title | Hot Deformation Behavior and Processing Map of High-Strength Nickel Brass |
| title_full | Hot Deformation Behavior and Processing Map of High-Strength Nickel Brass |
| title_fullStr | Hot Deformation Behavior and Processing Map of High-Strength Nickel Brass |
| title_full_unstemmed | Hot Deformation Behavior and Processing Map of High-Strength Nickel Brass |
| title_short | Hot Deformation Behavior and Processing Map of High-Strength Nickel Brass |
| title_sort | hot deformation behavior and processing map of high strength nickel brass |
| topic | nickel brass hot deformation constitutive model processing map workability |
| url | https://www.mdpi.com/2075-4701/10/6/782 |
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