Microstructure and properties of heat treated 1Cr17Ni4MoB steel fabricated by laser melting deposition

2018 ◽  
Vol 108 ◽  
pp. 59-68 ◽  
Author(s):  
Cui Ran ◽  
Cheng Yanhai ◽  
Meng Xianliang ◽  
Feng Shizhe ◽  
Han Zhengtong
Keyword(s):  
Laser Melting ◽  
Microstructure And Properties ◽  
Heat Treated ◽  
Laser Melting Deposition

scholarly journals Effect of Substrate Plate Heating on the Microstructure and Properties of Selective Laser Melted Al-20Si-5Fe-3Cu-1Mg Alloy

Materials ◽  
2021 ◽  
Vol 14 (2) ◽  
pp. 330
Author(s):  
Pan Ma ◽  
Pengcheng Ji ◽  
Yandong Jia ◽  
Xuerong Shi ◽  
Zhishui Yu ◽  
...  
Keyword(s):  
Room Temperature ◽  
Internal Stresses ◽  
Test Results ◽  
Laser Melting ◽  
Microstructure And Properties ◽  
Uniform Microstructure ◽  
Heat Treated ◽  
Fine Microstructure ◽  
Plate Heating ◽  
Substrate Plate

The Al-20Si-5Fe-3Cu-1Mg alloy was fabricated using selective laser melting (SLM). The microstructure and properties of the as-prepared SLM, post-treated SLM, and SLM with substrate plate heating are studied. The as-prepared SLM sample shows a non-uniform microstructure with four different phases: fcc-αAl, eutectic Al-Si, Al2MgSi, and δ-Al4FeSi2. With thermal treatment, the phases become coarser and the δ-Al4FeSi2 phase transforms partially to β-Al5FeSi. The sample produced with SLM substrate plate heating shows a relatively uniform microstructure without a distinct difference between hatch overlaps and track cores. Room temperature compression test results show that an as-prepared SLM sample reaches a maximum strength (862 MPa) compared to the heat-treated (524 MPa) and substrate plate heated samples (474 MPa) due to the presence of fine microstructure and the internal stresses. The reduction in strength of the sample produced with substrate plate heating is due to the coarsening of the microstructure, but the plastic deformation shows an improvement (20%). The present observations suggest that substrate plate heating can be effectively employed not only to minimize the internal stresses (by impacting the cooling rate of the process) but can also be used to modulate the mechanical properties in a controlled fashion.

Microstructure and Properties of TC4-Cu Duplex Coating Prepared by Laser Melting Deposition

2017 ◽  
Vol 44 (11) ◽  
pp. 1102007
Author(s):  
廖帮全 Liao Bangquan ◽  
徐 亮 Xu Liang ◽  
周圣丰 Zhou Shengfeng ◽  
杨 光 Yang Guang ◽  
尚 纯 Shang Chun ◽  
...  
Keyword(s):  
Laser Melting ◽  
Microstructure And Properties ◽  
Duplex Coating ◽  
Laser Melting Deposition

Microstructure and properties of FeCoCrNi high entropy alloy produced by laser melting deposition

2021 ◽  
pp. 161323
Author(s):  
Yangchuan Cai ◽  
Mengdie Shan ◽  
Yan Cui ◽  
Sunusi Marwana Manladan ◽  
Xin Lv ◽  
...  
Keyword(s):  
High Entropy Alloy ◽  
Laser Melting ◽  
High Entropy ◽  
Microstructure And Properties ◽  
Laser Melting Deposition
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