The Influence of Service Temperature and Thickness on the Tensile Properties of Thin T2 Copper Sheets

Ge, Yebao; Gou, Ruibin; Yu, Min; Zhang, Chunyu; Wang, Nian; Xu, Hao

doi:10.3390/ma15072341

Open AccessArticle

The Influence of Service Temperature and Thickness on the Tensile Properties of Thin T2 Copper Sheets

by

Yebao Ge

^1,2,

Ruibin Gou

¹,

Min Yu

^3,*,

Chunyu Zhang

¹,

Nian Wang

⁴ and

Hao Xu

¹

College of Mechanical Engineering, Anhui Science and Technology University, Fengyang 233100, China

²

School of Mechanical Engineering, Anhui Polytechnic University, Wuhu 241000, China

³

College of Architecture, Anhui Science and Technology University, Bengbu 233000, China

⁴

Bengbu Special Equipment Supervision and Inspection Center, Bengbu 233000, China

^*

Author to whom correspondence should be addressed.

Materials 2022, 15(7), 2341; https://doi.org/10.3390/ma15072341

Submission received: 11 February 2022 / Revised: 14 March 2022 / Accepted: 17 March 2022 / Published: 22 March 2022

(This article belongs to the Topic Fatigue and Fracture Assessment of Structural Components and Materials)

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Abstract

Thin T2 copper sheets with nine different thicknesses were employed in uniaxial tensile tests to investigate the influence of service temperature and thickness on their tensile properties. A total of 33 groups of tensile samples were separately tested at 20 °C, 100 °C, 150 °C, 200 °C, and 250 °C to obtain their elongation and their tensile and yield strengths. The change laws of the tensile properties of the investigated T2 copper were analyzed using different fitting functions. The main results show that both sheet thickness and temperature have an important influence on the tensile properties of T2 copper. As the sheet thickness increased, the tensile and yield strengths of the tested materials first increased rapidly, then decreased sharply, and finally stabilized. As the temperature increased, the tensile strength increased linearly while the yield strength decreased linearly. The relationships between the elongation and the sheet thickness and temperature were exponential and polynomial functions, respectively. T–t–Rm, T–t–Rel, and T–t–δ empirical formulas were proposed and established to predict the tensile properties of the investigated T2 copper sheet, and the predictive models exhibited solid accuracy.

Keywords: thin T2 copper sheets; tensile properties; service temperature; predict model

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MDPI and ACS Style

Ge, Y.; Gou, R.; Yu, M.; Zhang, C.; Wang, N.; Xu, H. The Influence of Service Temperature and Thickness on the Tensile Properties of Thin T2 Copper Sheets. Materials 2022, 15, 2341. https://doi.org/10.3390/ma15072341

AMA Style

Ge Y, Gou R, Yu M, Zhang C, Wang N, Xu H. The Influence of Service Temperature and Thickness on the Tensile Properties of Thin T2 Copper Sheets. Materials. 2022; 15(7):2341. https://doi.org/10.3390/ma15072341

Chicago/Turabian Style

Ge, Yebao, Ruibin Gou, Min Yu, Chunyu Zhang, Nian Wang, and Hao Xu. 2022. "The Influence of Service Temperature and Thickness on the Tensile Properties of Thin T2 Copper Sheets" Materials 15, no. 7: 2341. https://doi.org/10.3390/ma15072341

APA Style

Ge, Y., Gou, R., Yu, M., Zhang, C., Wang, N., & Xu, H. (2022). The Influence of Service Temperature and Thickness on the Tensile Properties of Thin T2 Copper Sheets. Materials, 15(7), 2341. https://doi.org/10.3390/ma15072341

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The Influence of Service Temperature and Thickness on the Tensile Properties of Thin T2 Copper Sheets

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