Fabrication of SUS304 regularly cell-structured material and their mechanical properties

The quasi-static flexural and in-plane compressive properties of SUS304 stainless steel with circular close-packed cells are studied. Microstainless steel tubes coated with Ni₃P were selected for constructing hexagonal close-packed arrays, which are subsequently joined together to form a cellular structure. The fabrication technique developed, involves the diffusion bonding of stacked metal tubes under the compressive stress state during heat treatment. SUS304 cell-structured materials can achieve the high specific flexural stiffness and specific flexural yield strength nearly equal to those for the dense materials. In-plane compressive properties as well as deformation behavior are also observed and discussed in this paper.