A Review on Near Net Shape Hot Isostatic Pressing of Metallic Materials: For Industrial Applications

The utilization of metallic materials with superior mechanical properties is growing in high-end applications. However, the fabricability of these materials has some significant challenges. To address these challenges, near-net shape (NNS) hot isostatic pressing (HIP) emerged as an effective technique, providing a leaner and more efficient single-step method to manufacture near-net shapes from powders. This article reviews the existing literature on NNS-HIP of metallic materials, covering the entire process from design to final inspection, and explores strategies for overcoming current challenges. The primary focus is to illustrate its industrial applicability while identifying factors that hinder its broader adoption. The findings suggest that continued research and systematic optimization of each step of NNS-HIP are required to achieve a compound effect, making the overall process more cost-effective and enhancing its industrial applicability.