Scholarlink

<p>The development of the three-roll skew roll bonding process has provided a feasible technical pathway for the fabrication of seamless cladding tubes with large length-to-diameter ratios. Among these, carbon steel/stainless steel cladding tubes exhibit the most promising application prospects. The quality of metallurgical bonding at the interface is primarily governed by the diffusion behavior of elements induced by rolling, with the rolling temperature serving as a critical external parameter that determines the diffusion kinetics and final service performance. In this study, 45CS/316LSS-lined cladding tubes were fabricated using a three-roll skew roll bonding process within the temperature range of 800–1200&#xa0;°C. The effects of rolling temperature on the microstructure evolution and bonding performance of the cladding tubes were systematically investigated. The intrinsic relationship between microstructure and bonding performance was established, ultimately optimizing the rolling process. The results indicated that the interface shear strength was highest at a rolling temperature of 800&#xa0;°C, reaching 360&#xa0;MPa. As the rolling temperature continued to increase, the grain size near the interface increased, resulting in a slight decrease in bonding strength. Meanwhile, the high temperature facilitated the diffusion of elements between 45CS and 316LSS, increasing the decarburization layer width on the 45CS side from 55.9&#xa0;μm (800&#xa0;°C) to 520&#xa0;μm (1200&#xa0;°C). The carbon depletion led to a reduction in solid solution strengthening, further weakening the load-bearing capacity of the interface. Therefore, the fundamental reason for the reduction in bonding strength at high temperatures was the outward migration of the softened zone and grain coarsening. Considering both the forming quality and energy consumption of the 45CS/316LSS cladding tubes, the optimal rolling temperature range was determined as 1000–1100&#xa0;°C. In this study, carbon steel/stainless steel cladding tubes with high bonding strength were fabricated using a three-roll skew roll bonding process at lower rolling temperatures. Furthermore, the relationship between the microstructure and macroscopic properties was established. These research findings offer new insights into the low-carbon and green manufacturing of high-quality 45CS/316LSS metallurgical cladding tubes.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Effect of rolling temperature on the microstructure and properties of 45CS/316LSS-lined cladding tubes fabricated via the three-roll skew roll bonding process

  • 期刊论文

  • 发表日期：

    2026年3月24日

查看全文
  • Peng Chen,
  • Hui Niu,
  • Wenbin Feng,
  • Lun Fu,
  • Ce Ji,
  • Yuanming Liu,
  • Tao Wang

摘要

The development of the three-roll skew roll bonding process has provided a feasible technical pathway for the fabrication of seamless cladding tubes with large length-to-diameter ratios. Among these, carbon steel/stainless steel cladding tubes exhibit the most promising application prospects. The quality of metallurgical bonding at the interface is primarily governed by the diffusion behavior of elements induced by rolling, with the rolling temperature serving as a critical external parameter that determines the diffusion kinetics and final service performance. In this study, 45CS/316LSS-lined cladding tubes were fabricated using a three-roll skew roll bonding process within the temperature range of 800–1200 °C. The effects of rolling temperature on the microstructure evolution and bonding performance of the cladding tubes were systematically investigated. The intrinsic relationship between microstructure and bonding performance was established, ultimately optimizing the rolling process. The results indicated that the interface shear strength was highest at a rolling temperature of 800 °C, reaching 360 MPa. As the rolling temperature continued to increase, the grain size near the interface increased, resulting in a slight decrease in bonding strength. Meanwhile, the high temperature facilitated the diffusion of elements between 45CS and 316LSS, increasing the decarburization layer width on the 45CS side from 55.9 μm (800 °C) to 520 μm (1200 °C). The carbon depletion led to a reduction in solid solution strengthening, further weakening the load-bearing capacity of the interface. Therefore, the fundamental reason for the reduction in bonding strength at high temperatures was the outward migration of the softened zone and grain coarsening. Considering both the forming quality and energy consumption of the 45CS/316LSS cladding tubes, the optimal rolling temperature range was determined as 1000–1100 °C. In this study, carbon steel/stainless steel cladding tubes with high bonding strength were fabricated using a three-roll skew roll bonding process at lower rolling temperatures. Furthermore, the relationship between the microstructure and macroscopic properties was established. These research findings offer new insights into the low-carbon and green manufacturing of high-quality 45CS/316LSS metallurgical cladding tubes.