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7 热处理后SLM NiTi SMAs的TEM像、STEM像和SAED花样^[19,35,47]

Fig.7 TEM images, STEM images, and selected area electron diffraction pattern of SLM NiTi alloys after heat treatment
(a-d) TEM images of SLM Ni_50.4Ti_49.6 after solution treatment (at 1000^oC for 1 h) and ageing (at 350^oC/450^oC for 1 h)^[47]
(e) STEM-HAADF image of SLM Ni_51.4Ti_48.6 after solution treatment (at 950^oC for 12 h) and ageing (at 450^oC for 5 h)^[35]
(f-h) STEM-HAADF image and selected area electron diffraction pattern of SLM Ni_51.1Ti_48.9 after ageing (at 400^oC for 1 h)^[19]