Laser Powder Bed Fusion of GH3536 Alloy

Shiling Min; Juan Hou; Kai Zhang; Aijun Huang

doi:10.3788/LOP202158.1700008

Laser & Optoelectronics Progress, Volume. 58, Issue 17, 1700008(2021)

Laser Powder Bed Fusion of GH3536 Alloy

Shiling Min¹, Juan Hou^1、*, Kai Zhang¹, and Aijun Huang²

¹Additive Manufacturing Research Institute, School of Materials Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China

²Monash Center for Additive Manufacturing, Monash University, Notting Hill, VIC 3168, Australia

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Abstract Get PDF(in Chinese)

Figures & Tables(12)

Fig. 1. Schematic of laser powder bed fusion forming^[8]

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Fig. 2. TTT curve of GH3536 alloy drawn by Zhao et al^[29]

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Fig. 3. Typical metallographic structures of GH3536 alloy prepared by LPBF^[32]. (a) Metallographic structure in vertical direction; (b) metallographic structure in horizontal direction

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Fig. 4. 3D printed molten pool of GH3536 alloy at high magnification^[32].(a) In vertical direction; (b) in horizontal direction

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Fig. 5. Microstructures in different directions^[33]. (a) In vertical direction; (b) in horizontal direction

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Fig. 6. Microstructures in different directions after heat treatment^[32]. (a)In vertical direction; (b) in horizontal direction

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Fig. 7. Microstructures in different directions after hot isostatic pressing^[37]. (a) In vertical direction; (b) in horizontal direction

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Table 1. Chemical composition of GH3536 alloy

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Table 1. Chemical composition of GH3536 alloy

Element	C	Cr	Co	W	Mo	Al	Ti	Ni
Mass fraction /%	0.05‒0.15	20.50‒23.00	0.50‒2.50	0.20‒1.00	8.00‒10.00	≤0.50	≤0.15	Bal.
Element	Fe	B	Mn	Si	P	S	Cu
Mass fraction /%	17.00‒20.00	≤0.010	≤1.00	≤1.00	≤0.025	≤0.015	≤0.50

Table 2. Mechanical properties of different varieties of GH3536 alloy stipulated in the technical standard^[26]

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Table 2. Mechanical properties of different varieties of GH3536 alloy stipulated in the technical standard^[26]

Species	Tensile properties at room temperature
Species	σ_0.2 /MPa	σ_b /MPa	δ_s /%
Cold rolled sheet	≥310	≥725	≥35
Cold rolled strip	≥310	≥760	≥30
Cold drawn pipe	≥310	≥690	≥25
Bar	≥275	≥690	≥30
Ring	≥275	≥690	≥30
Precision casting	≥200	≥380	≥10

Table 3. Room-temperature mechanical properties of GH3536 alloy prepared by LPBF^[44]

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Table 3. Room-temperature mechanical properties of GH3536 alloy prepared by LPBF^[44]

State	Direction	σ_0.2 /MPa	σ_b /MPa	δ_s /%
As-fabricated	Horizontal	630±20	780±5	8±3
As-fabricated	Vertical	600±40	900±5	28±4
LPBF+heat treatment	Horizontal	410±10	740±5	22±1
LPBF+heat treatment	Vertical	415±5	790±10	38±9
LPBF+HIP	Horizontal	480±40	760±5	40±1
LPBF+HIP	Vertical	430±30	810±5	41±10

Table 4. High-temperature mechanical properties of GH3536 alloy prepared by LPBF^[47]

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Table 4. High-temperature mechanical properties of GH3536 alloy prepared by LPBF^[47]

State	Direction	Yield strength /MPa	Tensile strength /MPa	Elongation /%	Reduction of area /%
Hot rolled		212	284	96	84
HIP+HT	Horizontal	214	312	54	48
HIP+HT	Vertical	224	333	57	41
HT	Horizontal	186	363	38	35
HT	Vertical	187	373	33	30
As-fabricated	Horizontal	370	471	19	23
As-fabricated	Vertical	299	358	3	4

Table 5. Creep properties of GH3536 alloy at high temperature^[49]

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Table 5. Creep properties of GH3536 alloy at high temperature^[49]

Specimen	Stress /MPa	Breaking time /h	Steady creep rate /（%·h^-1）	Elongation /%	Shrinkage /%
Bar	125	27.2	0.463	57	64
	105	60.5	0.169	44	52
	85	219.5	0.0391	26	38
Sample 1	125	167	0.00364	5.0	12
	105	757	0.00117	4.7	11
	85	2580	0.000268	3.7	4.8
Sample 2	125	39	0.0270	6.7	10.5
	105	118	0.00738	6.0	7.8
	85	456	0.00158	-	-

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Shiling Min, Juan Hou, Kai Zhang, Aijun Huang. Laser Powder Bed Fusion of GH3536 Alloy[J]. Laser & Optoelectronics Progress, 2021, 58(17): 1700008

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Paper Information

Category: Reviews

Received: Aug. 20, 2020

Accepted: Oct. 29, 2020

Published Online: Aug. 30, 2021

The Author Email: Hou Juan (houjuanlife@yahoo.com)

DOI:10.3788/LOP202158.1700008

Topics

laser devices and laser physics

Lasers and Laser Optics

Laser physics

laser manufacturing

Instrumentation, Measurement and Metrology

Table 1. Chemical composition of GH3536 alloy

Table 1. Chemical composition of GH3536 alloy

Table 2. Mechanical properties of different varieties of GH3536 alloy stipulated in the technical standard[26]

Table 2. Mechanical properties of different varieties of GH3536 alloy stipulated in the technical standard[26]

Table 3. Room-temperature mechanical properties of GH3536 alloy prepared by LPBF[44]

Table 3. Room-temperature mechanical properties of GH3536 alloy prepared by LPBF[44]

Table 4. High-temperature mechanical properties of GH3536 alloy prepared by LPBF[47]

Table 4. High-temperature mechanical properties of GH3536 alloy prepared by LPBF[47]

Table 5. Creep properties of GH3536 alloy at high temperature[49]

Table 5. Creep properties of GH3536 alloy at high temperature[49]

Table 2. Mechanical properties of different varieties of GH3536 alloy stipulated in the technical standard^[26]

Table 2. Mechanical properties of different varieties of GH3536 alloy stipulated in the technical standard^[26]

Table 3. Room-temperature mechanical properties of GH3536 alloy prepared by LPBF^[44]

Table 3. Room-temperature mechanical properties of GH3536 alloy prepared by LPBF^[44]

Table 4. High-temperature mechanical properties of GH3536 alloy prepared by LPBF^[47]

Table 4. High-temperature mechanical properties of GH3536 alloy prepared by LPBF^[47]

Table 5. Creep properties of GH3536 alloy at high temperature^[49]

Table 5. Creep properties of GH3536 alloy at high temperature^[49]