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Author:

Gou, R.B. (Gou, R.B..) | Ge, Y.B. (Ge, Y.B..) | Yu, M. (Yu, M..) | Zhang, C.Y. (Zhang, C.Y..) | Shi, Y.J. (Shi, Y.J..) | Dan, W.J. (Dan, W.J..) | Wang, N. (Wang, N..) | Si, Z.Y. (Si, Z.Y..)

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EI Scopus SCIE

Abstract:

To investigate the relationship between service temperature ranging from –40~250℃, and size effect on tensile properties of thin ASS-304 sheets with nine different thicknesses (40~500 μm), uniaxial tensile tests were performed on thin ASS-304 sheets of the same average grain size in the present study. Within the thickness range of 40 to 300 μm, corresponding to η = t/d values from 1.1 to 8.1. The ultimate tensile strength (UTS), yield strength (YS), and elongation (EL) of ASS-304 exhibits a dimensional effect of “the thinner, the stronger”. For example, as the η increases from 1.1 to 8.1, the UTS rapidly decreased from 1798.8 to 839.0 MPa at 20℃, from 1703.1 to 526.9 MPa at 150℃, and from 1661.2 to 478.9 MPa at 250℃, attenuation of 53.36, 69.06, and 71.17%, respectively. Meanwhile, the YS at 20℃ are separately 1768.9 to 418.7 MPa with 1695.2 to 343.3 MPa at 150℃ as well as 1645.7 to 330.1 MPa at 250°C, decrease the proportion of 76.33%, 79.75% and 79.94% respectively. Notably, the UTS, YS, and EL at 150 and 250℃ are lower than those at 20℃. The true stress value of ASS-304 was enhanced at –20 and –40℃, and the true strain increases first and then weakens as the thickness increases, the reason is the transformation- induced-plasticity (TRIP) effect of ASS-304 in stretching. The asymptotic function describes the relationship between strength and the values of η, while the Chapman function represents the relationship between elongation and the η. A linear variation exists between service temperature and tensile properties. And relevant empirical equations including T-η- and T-η-tensile properties were established, which can predict the UTS, YS, and EL of thin ASS-304 sheets under different service temperatures. © Springer Science+Business Media, LLC, part of Springer Nature 2024.

Keyword:

empirical model service temperature size effect thin sheets tensile properties

Author Community:

  • [ 1 ] [Gou R.B.]College of Mechanical Engineering, Anhui Science and Technology University, Fengyang, China
  • [ 2 ] [Gou R.B.]Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing, China
  • [ 3 ] [Ge Y.B.]School of Mechanical Engineering, Anhui Polytechnic University, Wuhu, China
  • [ 4 ] [Yu M.]College of Architecture, Anhui Science and Technology University, Bengbu, China
  • [ 5 ] [Zhang C.Y.]College of Mechanical Engineering, Anhui Science and Technology University, Fengyang, China
  • [ 6 ] [Shi Y.J.]College of Mechanical Engineering, Anhui Science and Technology University, Fengyang, China
  • [ 7 ] [Dan W.J.]College of Mechanical Engineering, Anhui Science and Technology University, Fengyang, China
  • [ 8 ] [Wang N.]Bengbu Special Equipment Supervision and Inspection Center, Bengbu, China
  • [ 9 ] [Si Z.Y.]College of Mechanical Engineering, Anhui Science and Technology University, Fengyang, China

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Source :

Strength of Materials

ISSN: 0039-2316

Year: 2024

0 . 7 0 0

JCR@2022

Cited Count:

WoS CC Cited Count: 0

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 5

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