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Research progress in the creep resistance of porous metal materials
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Cong LI, Xinyue XIAO, Jian CHEN
Journal of Mechanical Strength | 2025, 47(7) : 1 - 13
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Journal of Mechanical Strength | 2025, 47(7): 1-13
• ·Fatigue·Damage·Fracture·Failure Analysis· •
Research progress in the creep resistance of porous metal materials
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Cong LI, Xinyue XIAO, Jian CHEN
Affiliations
  • College of Energy and Power Engineering, Changsha University of Science & Technology, Changsha 410114, China
Published: 2025-07-15 doi: 10.16579/j.issn.1001.9669.2025.07.001
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Porous metals are widely used in filtration, catalysis, adsorption and heat transfer because of their excellent mechanical properties. However, creep failure is a primary failure mode for porous metal parts experiencing the high temperature and constant stress. The research progress of the creep resistance of porous metal materials was summarized from four aspects, pore structure，edge structure, micro-defect and creep life prediction. The effects of pore structure, such as porosity, pore shape and pore diameter, on the stress index, creep resistance and deformation mechanism of porous metals were expounded. The creep resistance of the hollow and solid edge under different stress conditions was analyzed, and the effect law of edge size on the creep rate of porous metals was revealed. The effect of micro-defects on the creep mechanism of porous metals was clarified, and the constitutive model for predicting the creep life of porous metals was introduced. These studies provide scientific guidance for the long-life service and reliable operation of porous metal structures.

Porous metal  /  Creep strength  /  Porosity  /  Edge structure  /  Micro-defect
Cong LI, Xinyue XIAO, Jian CHEN. Research progress in the creep resistance of porous metal materials[J]. Journal of Mechanical Strength, 2025 , 47 (7) : 1 -13 . DOI: 10.16579/j.issn.1001.9669.2025.07.001
Funding
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  • National Natural Science Foundation of China(52175129)
Appendix
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Year 2025 volume 47 Issue 7
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66
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Article Info
doi: 10.16579/j.issn.1001.9669.2025.07.001
  • Receive Date：2023-12-09
  • Online Date：2026-03-19
  • Published：2025-07-15
Article Data
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History
  • Received：2023-12-09
  • Revised：2024-01-10
Funding
National Natural Science Foundation of China(52175129)
Affiliations
    College of Energy and Power Engineering, Changsha University of Science & Technology, Changsha 410114, China

Corresponding:

CHEN Jian, E-mail：
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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