Effect of Heat Treatment on Mechanical and Anti-Corrosion Properties of Fe-Based Laser Cladded Coatings

Shuang Liu; Qinying Wang; Yuchen Xi; Yirong Tang; Rui Pei; Shulin Bai

doi:10.3788/LOP56.121401

Laser & Optoelectronics Progress, Volume. 56, Issue 12, 121401(2019)

Effect of Heat Treatment on Mechanical and Anti-Corrosion Properties of Fe-Based Laser Cladded Coatings

Shuang Liu¹, Qinying Wang^1、*, Yuchen Xi¹, Yirong Tang¹, Rui Pei¹, and Shulin Bai²

Author Affiliations

¹ School of Materials Science and Engineering, Southwest Petroleum University, Chengdu, Sichuan 610500, China

² College of Engineering, Peking University, Beijing 100871, China

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Abstract Get PDF(in Chinese)

Figures & Tables(9)

Fig. 1. Surface morphologies before and after heat treatment. (a) Without heat treatment; (b) heat treatment of 600 ℃ × 2 h; (c) heat treatment of 750 ℃ × 2 h; (d) heat treatment of 900 ℃ × 2 h

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$X-ray diffraction patterns of sample before and after heat treatment$

Fig. 2. X-ray diffraction patterns of sample before and after heat treatment

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Fig. 3. Cross-sectional microhardness distributions of substrate and coating

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Fig. 4. Cross-sectional friction coefficients of substrate and coating versus scratch distance

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$Nyqusit curves of Fe-based cladding coating in NaCl solution with mass fraction of 3.5% at different heat treatment temperatures$

Fig. 5. Nyqusit curves of Fe-based cladding coating in NaCl solution with mass fraction of 3.5% at different heat treatment temperatures

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$Potentiodynamic polarization curves of Fe-based cladding coating in NaCl solution with mass fraction of 3.5% at different heat treatment temperatures$

Fig. 6. Potentiodynamic polarization curves of Fe-based cladding coating in NaCl solution with mass fraction of 3.5% at different heat treatment temperatures

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Table 1. Chemical compositions of Q235 carbon steel and Fe-based amorphous powder
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Table 1. Chemical compositions of Q235 carbon steel and Fe-based amorphous powder
Sample Mass fraction /%
Cr Mo W Si Mn B C S P Fe
Q235 steel 0 0 0 0.37 0.08 0 0.16 0.04 0.04 Bal.
Fe-based amorphous powder 17.7 7.4 1.6 2.4 1.9 15.2 3.8 0 0 Bal.

Table 2. Process parameters of laser cladding
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Table 2. Process parameters of laser cladding
Laser power Spot diameter Scanning speed Overlap ratio Pulse frequency
P /W d /mm V /(m·s^-1) δ /% f /Hz
700 3 6 30 12

Table 3. Tafel fitting results of Fe-based cladding coating in NaCl solution with mass fraction of 3.5% at different heat treatment temperatures
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Table 3. Tafel fitting results of Fe-based cladding coating in NaCl solution with mass fraction of 3.5% at different heat treatment temperatures
Treatmentcondition E_corr(V vs. SCE) I_corr /(10^-5A·cm^-2)
Un-heat -0.63243 2.8519
600 ℃×2 h -0.74774 1.9398
750 ℃×2 h -0.76149 0.6159
900 ℃×2 h -0.52500 0.2281

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Shuang Liu, Qinying Wang, Yuchen Xi, Yirong Tang, Rui Pei, Shulin Bai. Effect of Heat Treatment on Mechanical and Anti-Corrosion Properties of Fe-Based Laser Cladded Coatings[J]. Laser & Optoelectronics Progress, 2019, 56(12): 121401

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Paper Information

Category: Lasers and Laser Optics

Received: Nov. 27, 2018

Accepted: Jan. 15, 2019

Published Online: Jun. 13, 2019

The Author Email: Wang Qinying (wangqy0401@126.com)

DOI:10.3788/LOP56.121401

Topics

laser devices and laser physics

Lasers and Laser Optics

Laser physics

laser manufacturing

Instrumentation, Measurement and Metrology

Table 1. Chemical compositions of Q235 carbon steel and Fe-based amorphous powder

Table 1. Chemical compositions of Q235 carbon steel and Fe-based amorphous powder

Table 2. Process parameters of laser cladding

Table 2. Process parameters of laser cladding

Table 3. Tafel fitting results of Fe-based cladding coating in NaCl solution with mass fraction of 3.5% at different heat treatment temperatures

Table 3. Tafel fitting results of Fe-based cladding coating in NaCl solution with mass fraction of 3.5% at different heat treatment temperatures