Experimental Research on Mechanical Properties of Novel Stainless Steel-Clad Rebars

ZHONG Xiaoping; NI Keting; HUANG Xinyao; ZHANG Jun; FAN Weijie; ZHU Bingxi; ZHANG Rui; CHAI Jing'ao

doi:10.3724/j.gyjzG24110701

Volume 55 Issue 6

Jun. 2025

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ZHONG Xiaoping, NI Keting, HUANG Xinyao, ZHANG Jun, FAN Weijie, ZHU Bingxi, ZHANG Rui, CHAI Jing'ao. Experimental Research on Mechanical Properties of Novel Stainless Steel-Clad Rebars[J]. INDUSTRIAL CONSTRUCTION, 2025, 55(6): 251-259. doi: 10.3724/j.gyjzG24110701

Citation:

ZHONG Xiaoping, NI Keting, HUANG Xinyao, ZHANG Jun, FAN Weijie, ZHU Bingxi, ZHANG Rui, CHAI Jing'ao. Experimental Research on Mechanical Properties of Novel Stainless Steel-Clad Rebars[J]. INDUSTRIAL CONSTRUCTION, 2025, 55(6): 251-259. doi: 10.3724/j.gyjzG24110701

Citation:

ZHONG Xiaoping, NI Keting, HUANG Xinyao, ZHANG Jun, FAN Weijie, ZHU Bingxi, ZHANG Rui, CHAI Jing'ao. Experimental Research on Mechanical Properties of Novel Stainless Steel-Clad Rebars[J]. INDUSTRIAL CONSTRUCTION, 2025, 55(6): 251-259. doi: 10.3724/j.gyjzG24110701

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Experimental Research on Mechanical Properties of Novel Stainless Steel-Clad Rebars

doi: 10.3724/j.gyjzG24110701

1. College of Civil Science and Engineering, Yangzhou University, Yangzhou 225127, China;
2. School of Civil Engineering and Architecture, NingboTech University, Ningbo 315100, China;
3. Jiangsu Water Conservancy Science Research Institute, Yangzhou 225002, China

Received Date: 2024-11-07

Abstract

Abstract

In order to obtain the mechanical properties required for structural design，the metallographic structure evolution and mechanical properties of the composite interface of novel 316SC stainless steel-clad rebar were studied using scanning electron microscopy （SEM） and uniaxial tensile tests. The results showed that a metallurgical bond layer of approximately 15 μm formed at the composite interface of the stainless steel-clad rebar， with a tight bond between the outer stainless steel layer and the inner carbon steel core. The stainless steel-clad rebars with different diameters exhibited varying stress-strain curve shapes. The yield platform disappeared in the 12 mm diameter stainless steel-clad rebar， whereas the 16 mm and 25 mm diameter rebars displayed mechanical properties similar to those of HRB400E rebars， with obvious yield platforms and strain-strengthening sections in their stress-strain curves. The strength and ductility of 316SC stainless steel-clad rebars， composed of 316L stainless steel and HRB400E carbon steel， were improved to varying degrees compared to HRB400E rebars， but the elastic modulus decreased slightly. On the basis of experimental research and theoretical analysis， the stress-strain constitutive model of stainless steel-clad rebars was established. A composite formula for calculating the elastic modulus of stainless steel-clad rebars was also proposed， showing good agreement with the measured values.
- stainless steel-clad rebar,
- monotonic tension,
- fracture morphology,
- mechanical properties,
- elastic modulus

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References(31)

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