High Temperature Tensile Fracture Behavior of Copper-Containing Austenitic Antibacterial Stainless Steel |
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| Authors: | Jiali Qian Haijuan Wang Jing Li Rongjun Xu |
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| Affiliation: | 1.State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing (USTB), Beijing 100083, China;2.School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing (USTB), Beijing 100083, China;3.Guangdong Guangqing Metal Technology Co., Ltd., Yangjiang 529500, China; |
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| Abstract: | The mechanical properties and deformation microstructure of cast 304 Cu-containing austenitic stainless steel at 10−3/s strain rate in the range of 700~1200 °C were studied by Gleeble thermal simulator, metallographic microscope and scanning electron microscope. The results showed that the thermoplasticity of 304 Cu-containing austenitic stainless steel was higher than 60% when the temperature was higher than 1000 °C, and the tensile strength as a whole decreased with the increase in temperature. During the tensile process, the morphology and content of ferrite in the test steel were the main factors affecting the high-temperature thermoplastic of the billet. The inclusions near the fracture and the existence of ferrite at the grain boundary greatly affected the formation of microcracks and holes and the fracture. |
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| Keywords: | 304 Cu-containing stainless steel thermoplastic high temperature tensile ferrite |
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