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<p>Internal cores are essential for the near-net shape hot isostatic pressing (HIP) process to ensure shape accuracy and surface quality. This study proposed ceramic cores to replace conventional metal cores for HIP. The feasibility was evaluated by comparing ZrO<sub>2</sub> and 304 stainless steel cores regarding shape accuracy and interfacial diffusion behavior. This work proves the ceramic core can effectively ensure HIPed parts with desirable internal shape accuracy and surface quality and is anticipated to provide a new avenue for internal quality control for HIP.</p>

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Comparison of Shape Control Accuracy and Interfacial Diffusion Behavior Between 304 Stainless Steel Core and ZrO2 Core in Hot Isostatic Pressing

  • 期刊论文

  • 发表日期：

    2025年1月23日

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  • Jiahao Lu,
  • Yudong Cao,
  • Jili Cai,
  • Jie Liu,
  • Chao Cai,
  • Yusheng Shi

摘要

Internal cores are essential for the near-net shape hot isostatic pressing (HIP) process to ensure shape accuracy and surface quality. This study proposed ceramic cores to replace conventional metal cores for HIP. The feasibility was evaluated by comparing ZrO2 and 304 stainless steel cores regarding shape accuracy and interfacial diffusion behavior. This work proves the ceramic core can effectively ensure HIPed parts with desirable internal shape accuracy and surface quality and is anticipated to provide a new avenue for internal quality control for HIP.