Quasi In-Situ Study of Microstructure in a Laser Powder Bed Fusion Martensitic Stainless Steel

被引：1
|
作者：
Shahriari, Ayda [1 ]
Sanjari, Mehdi [1 ,2 ]
Mahmoudiniya, Mahdi [3 ]
Pirgazi, Hadi [3 ]
Amirkhiz, Babak Shalchi [1 ,2 ]
Kestens, Leo A. I. [3 ,4 ]
Mohammadi, Mohsen [1 ]
机构：
[1] Univ New Brunswick, Marine Addit Mfg Ctr Excellence MAMCE, Fredericton, NB E3B5A3, Canada
[2] CanmetMATERIALS, Nat Resources Canada, 183 Longwood Rd South, Hamilton, ON L8P0A5, Canada
[3] Univ Ghent, Dept Electromech Syst & Met Engn, B9052, Ghent, Belgium
[4] Delft Univ Technol, Dept Mat Sci & Engn, NL-2628 CD Delft, Netherlands
来源：
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE | 2024年 / 55卷 / 05期
基金：
加拿大自然科学与工程研究理事会;
关键词：
AUSTENITE GRAIN-SIZE; MECHANICAL-PROPERTIES; HEAT-TREATMENT; MORPHOLOGY; EVOLUTION; REFINEMENT; BLOCKS;
D O I：
10.1007/s11661-024-07353-4
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
This study explores the evolution of solidification microstructure of a laser powder bed fusion (L-PBF) martensitic stainless steel during solution annealing and aging. Quasi in-situ experiments using electron backscatter diffraction (EBSD) revealed that the finer, more equiaxed microstructure below the melt pool was susceptible to recrystallization and grain growth during solution annealing. The two distinct solidification microstructures below and inside the melt pool converged into a uniform grain morphology after solution annealing and aging processes. [GRAPHICS] .
引用
收藏
页码：1302 / 1310
页数：9
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