Laser & Optoelectronics Progress, Volume. 56, Issue 14, 141401(2019)
Effects of Microstructure on Mechanical Properties of GH3536 Alloy Fabricated by Selective Laser Melting
Figures & Tables(10)
Fig. 2. Grain morphologies of SLM GH3536. (a) Longitudinal and (b) transverse sections of specimen A; (c) longitudinal and (d) transverse sections of specimen B
Fig. 4. Precipitation of SLM GH3536. (a) Transmission photograph; (b) electron diffraction patterns; (c) scanning photograph; (d) EDS pattern
Fig. 5. Microstructures of SLM GH3536. (a) Longitudinal and (b) transverse sections of specimen A; (c) longitudinal and (d) transverse sections of specimen B
Fig. 6. Tensile fractures of SLM GH3536 alloy at room temperature. (a) Longitudinal and (b) transverse fractures of specimen A; (c) longitudinal and (d) transverse fractures of specimen B
Fig. 7. Fractures of SLM GH3536 alloy at high temperature. (a) Longitudinal and (b) transverse fractures of specimen A; (c) longitudinal and (d) transverse fractures of specimen B
Fig. 8. Fracture sections of SLM GH3536 alloy at high temperature. (a) Low magnification photograph; (b) high magnification photograph
Table 1. Chemical composition of SLM GH3536 specimen (mass fraction, %)
View tableTable 1. Chemical composition of SLM GH3536 specimen (mass fraction, %)
Element C Cr Co Mo W Fe Mn Si Ni Specimen A 0.120 21.23 1.45 8.85 0.58 18.51 0.012 0.059 Bal. Specimen B 0.062 21.71 1.61 9.19 0.60 18.79 0.02 0.35 Bal. Industry standard[ 12 ]0.05-0.15 20.50-23.00 0.50-2.50 8.00-10.00 0.20-1.00 17.00-20.00 ≤1.0 ≤1.0 Bal.
Table 2. Room temperature tensile property and high temperature endurance performance of SLM GH3536 alloy
View tableTable 2. Room temperature tensile property and high temperature endurance performance of SLM GH3536 alloy
Specimen Direction Tensile property Stress-rupture property UTS/MPa YS/MPa EL/% RA/% Duration /h EL/% Specimen A L 723 390 41 57 39 7 T 784 401 29 30 11 5 Specimen B L 721 306 44 44 35 19 T 744 314 40 37 35 20 Industry standard[ 1 ]690 275 30 24 10
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Jiaqi Xue, Xiaohui Chen, Liming Lei. Effects of Microstructure on Mechanical Properties of GH3536 Alloy Fabricated by Selective Laser Melting[J]. Laser & Optoelectronics Progress, 2019, 56(14): 141401
Paper Information
Category: Lasers and Laser Optics
Received: Jan. 15, 2019
Accepted: Feb. 21, 2019
Published Online: Jul. 12, 2019
The Author Email: Chen Xiaohui (chenxiaohui0310@126.com)
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