选区激光熔化<strong>NiTi</strong>形状记忆合金研究进展

选区激光熔化NiTi形状记忆合金研究进展

杨超, 卢海洲, 马宏伟, 蔡潍锶

Research and Development in NiTi Shape Memory Alloys Fabricated by Selective Laser Melting

YANG Chao, LU Haizhou, MA Hongwei, CAI Weisi

图12 NiTi、不锈钢和人体组织的性能对比图；多孔结构的模型图以及SLM制备的多孔NiTi SMAs^{[37,38,63,90]}

Fig.12 Comparisons of mechanical properties of NiTi SMAs, stainless steel, and human tissues (a), isometric view of the CAD model and image of SLM porous Ni_45.2Ti_54.8 (b)^[38], CAD models with three different pore sizes and image of SLM porous Ni_50.4Ti_49.6 (c)^[63], cellular lattice structure and image of SLM porous Ni_50.6Ti_49.4 (d)^[90], and CAD models and image of the SLM Ni_50.3Ti_49.7 gyroid cellular structure (e) (U-GCS: uniform gyroid cellular structure, Y-GCS: graded gyroid structure with the density gradient along y-axis, Z-GCS: graded gyroid structure with density along gradient z-axis)^[37]