Mechanical Properties of 316L Stainless Steel Porous Structure Fabricated by SLM

Cui Xinjian; Liu Yude; Shi Wentian; Ma Yingyi

doi:10.15980/j.tzzz.2020.01.018

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Mechanical Properties of 316L Stainless Steel Porous Structure Fabricated by SLM
Vol. 40, Issue 1, Pages: 75-80(2020)
Published： 2020 ，
DOI： 10.15980/j.tzzz.2020.01.018

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[1]崔新建,刘玉德,石文天,马英怡.选区激光熔化成形316L不锈钢多孔结构及力学性能[J].特种铸造及有色合金,2020,40(01):75-80.

Cui Xinjian, Liu Yude, Shi Wentian, et al. Mechanical Properties of 316L Stainless Steel Porous Structure Fabricated by SLM. [J]. Special Casting & Nonferrous Alloys 40(1):75-80(2020)
[1]崔新建,刘玉德,石文天,马英怡.选区激光熔化成形316L不锈钢多孔结构及力学性能[J].特种铸造及有色合金,2020,40(01):75-80. DOI： 10.15980/j.tzzz.2020.01.018.

Cui Xinjian, Liu Yude, Shi Wentian, et al. Mechanical Properties of 316L Stainless Steel Porous Structure Fabricated by SLM. [J]. Special Casting & Nonferrous Alloys 40(1):75-80(2020) DOI： 10.15980/j.tzzz.2020.01.018.

摘要

基于选区激光熔化技术（SLM）

制备了BCC、FCC、FCCZ 3种不同拓扑单元的316L不锈钢多孔结构

验证了该技术成形复杂多孔结构件的可行性。对试样进行了准静态压缩试验

得到了多孔结构在压缩过程中的变形模式和力学响应曲线

对比分析了3种结构试样的力学性能。结果表明

FCCZ型多孔结构的抗压性能和能量吸收特性均优于BCC型和FCC型结构;利用ABAQUS/Explicit软件进行准静态压缩仿真

仿真结果和试验结果基本符合。

Abstract

316 Lstainless steel porous structures with three different topological units

BCC

FCC and FCCZ

were fabricated by selective laser melting technology.The feasibility of forming complex porous structure with SLM technology was verified.Quasi-static compression tests were carried out on the specimens

and the deformation modes and mechanical response curves of porous structures during compression were presenetd.The mechanical properties of the three structures were analyzed comparatively.The results reveal that the compressive behavior and energy absorption capability of the FCCZ porous structure are superior to those of the BCC and FCC structures

which provides a reference for the design of lightweight structure and energy absorption structure.Quasistatic compression simulation was carried out by using ABAQUS/Explicit software.The simulated results were basically in agreement with the experimental ones.