Applications of Hot Isostatic Pressing on Cast Superalloy
Applications of Hot Isostatic Pressing on Cast Superalloy
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发表时间：
2012
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通讯作者：
Zhao Ming-han
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作者：
Zhao Ming-han
热等静压（HIP）能促进铸件中气孔的蠕变扩散，使气孔闭合，组织均匀，力学性能，特别是抗疲劳性能、塑性及这些性能的稳定性得到大幅度提高，从而提高了铸造高温合金的安全性和可靠性。讨论了热等静压工艺参数对铸造高温合金组织和性能的影响，并介绍了热等静压技术的应用和发展。
Hot isostatic pressing(HIP) can promote creep diffusion of pores in the cast,leading to closing porosity and uniform microstructure.The mechanical properties,especially the fatigue resistance,plasticity,and the stability of these properties are improved greatly,thus the security and reliability of cast superalloy are enhanced.The densification principle,processing parameters,and the influence of processing parameters on the microstructure and properties of cast superalloy are discussed.The application and development of HIP are also introduced.