Laser & Optoelectronics Progress, Volume. 55, Issue 2, 021414(2018)
Effect of Laser Melting on Microstructure and Performance of AerMet100 Steel
Figures & Tables(14)
Fig. 1. Laser melting equipment. (a) Semiconductor laser equipment; (b) laser melting working head
Fig. 2. Macro-morphologies of AerMet100 steel after laser melting. (a) Sample P-1#; (b) sample P-2#; (c) sample P-3#; (d) sample P-4#
Fig. 3. Micro-morphologies of sample P-4# after laser melting. (a) Overall; (b) lower part; (c) middle part; (d) upper part
Fig. 5. Morphologies of laser melting layers. (a) Sample P-1#; (b) sample P-2#; (c) sample P-3#; (d) sample P-4#
Fig. 10. Three-dimensional morphologies of AerMet100 steel grinding crack. (a) Sample P-0#; (b) sample P-2#; (c) sample P-4#
Table 1. Chemical compositions of AerMet100 steel (mass fraction, %)
View tableTable 1. Chemical compositions of AerMet100 steel (mass fraction, %)
Element Co Ni Cr Mo C Value 13.42 11.28 2.93 1.20 0.23
Table 2. Different laser melting process parameters
View tableTable 2. Different laser melting process parameters
Sample number Laser power /W Scanning speed / (mm·min-1) Shielding gas P-1# 750 400 Ar P-2# 1050 400 Ar P-3# 1350 400 Ar P-4# 1650 400 Ar
Table 3. Tafel fitting data of polarization curves
View tableTable 3. Tafel fitting data of polarization curves
Sample P-0# P-1# P-2# P-3# P-4# E corr /V -0.374 -0.323 -0.289 -0.272 -0.235 I corr /(10-7 A ) 4.785 0.635 0.510 0.345 0.209
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Yunlong Meng, Jiaoxi Yang, Jianquan Zhang, Shuzhi Wang, Hong Chen, Xibing Wang, Yanpeng Jin, Guangrui Zhang. Effect of Laser Melting on Microstructure and Performance of AerMet100 Steel[J]. Laser & Optoelectronics Progress, 2018, 55(2): 021414
Paper Information
Category: Lasers and Laser Optics
Received: Aug. 29, 2017
Accepted: --
Published Online: Sep. 10, 2018
The Author Email: Yunlong Meng (meng624468722@qq.com)
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