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- Title
Quasi-static compressive performance of porous stainless steel fiber materials.
- Authors
Wang Jianzhong; Ao Qingbo; Ma Jun; Tang Huiping; Song Weidong; Luo Shiming; Chen Xujun; Jiang Lin
- Abstract
Porous stainless steel fiber materials with porosities ranging from 64.3% to 89.3% were prepared by sintering using 316L stainless steel fiber green felts with fiber diameters of 8 and 20 µm. The quasi-static compressive property of porous stainless steel fiber materials was tested using the INSTRON machine and the stress-strain curves were obtained using the Vic-3D non-contact strain tester. The deformation process was recorded using the high speed vidicon. Effects of the porosity, the fiber diameter, the thickness on the elastic modulus and the energy absorption capacity of porous stainless steel materials were studied systematically. Results show that the quasi-static compressive stress-strain curve of porous stainless steel fiber materials exhibits three unobvious regions, i.e., the elastic deformation stage, the strengthing stage with weak deformation and the strengthing stage with strong deformation. Furthermore, the elastic modulus and the energy absorption capacity increase constantly as the porosity of porous materials decreases. When the porosity of porous materials is 64.3%, the elastic modulus and the energy absorption capacity are 542 MPa and 27.7 MJ/m³, respectively.
- Subjects
STAINLESS steel; POROUS materials; MATERIALS compression testing; SINTERING; STRESS-strain curves; ELASTIC deformation
- Publication
Journal of Functional Materials / Gongneng Cailiao, 2018, Vol 49, Issue 9, p09107
- ISSN
1001-9731
- Publication type
Article
- DOI
10.3969/j.issn.1001-9731.2018.09.019