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내마모, 내충격성 동시 향상을 위한 AISI-M4/H13 분말 다중 클래딩 특성 분석

Experimental Analysis on Multilayer Cladding Using AISI-M4/H13 Metal Powders for Enhancement of Wear Resistance and Shockproof Characteristics

Journal of the Korean Society for Precision Engineering 2019;36(11):1059-1064.
Published online: November 1, 2019

1 부산대학교 대학원 기계공학부

2 부산대학교 첨단기계부품소재 인력양성사업단

3 한국생산기술연구원 스마트가공공정그룹

4 부산대학교 기계공학부

1 School of Mechanical Engineering, Graduate School, Pusan National University

2 HRD Center for Advanced Mechanical Parts and Materials, Pusan National University

3 Smart Manufacturing Process Group, Korea Institute of Industrial Technology

4 School of Mechanical Engineering, Pusan National University

#E-mail: sanghu@pusan.ac.kr, TEL: +82-51-510-1011
• Received: October 7, 2018   • Revised: March 20, 2019   • Accepted: July 17, 2019

Copyright © The Korean Society for Precision Engineering

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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  • Effect of Post-Heat Treatment on the AISI M4 Layer Deposited by Directed Energy Deposition
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Experimental Analysis on Multilayer Cladding Using AISI-M4/H13 Metal Powders for Enhancement of Wear Resistance and Shockproof Characteristics
J. Korean Soc. Precis. Eng.. 2019;36(11):1059-1064.   Published online November 1, 2019
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Experimental Analysis on Multilayer Cladding Using AISI-M4/H13 Metal Powders for Enhancement of Wear Resistance and Shockproof Characteristics
J. Korean Soc. Precis. Eng.. 2019;36(11):1059-1064.   Published online November 1, 2019
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Experimental Analysis on Multilayer Cladding Using AISI-M4/H13 Metal Powders for Enhancement of Wear Resistance and Shockproof Characteristics
Image Image Image Image Image
Fig. 1 Schematic diagram of direct energy deposition (DED) equipment
Fig. 2 Schematic diagram of wear test
Fig. 3 Illustration of impact test specimen; inset Ⓐ shows the detail shape and deposition of a notch (unit: mm)
Fig. 4 Results of the micro vickers hardness tests
Fig. 5 SEM images of the fractured surface; (a) Case-1 shows interface cracks and voids between AISI-D2 and –H13, (b) Case-2 shows interface cracks and voids between partial mixture layer (AISI-M4 and –H13) and base metal AISI-D2, and (c) Case-3 shows improvement of cleaner fractured surface
Experimental Analysis on Multilayer Cladding Using AISI-M4/H13 Metal Powders for Enhancement of Wear Resistance and Shockproof Characteristics

Chemical composition of various powders

(wt. %)

Chemical
element
C Cr Fe Mn Mo Si V W
AISI-D2 1.6 11.8 84.4 0.4 0.8 0.3 0.8 -
AISI-M4 1.4 4.5 79.5 0.3 4.5 0.3 4.0 5.5
AISI-H13 0.5 5.0 90.4 0.4 1.6 1.0 1.1 -

Preparation of specimens with middle layer

Specimen Middle layer Multiple cladded
AISI-
H13(%)
AISI-
M4(%)
Case-1
(One MLs)
100 0
Case-2
(Two MLs)
100 0
50 50
Case-3
(Three MLs)
70 30
50 50
30 70

Summarized results of wear test and Charpy impact test; without middle layer and three cases

Deposited
case
Without middle
layer (Case-0)
With middle layer
Case-1 Case-2 Case-3
Height (mm) 9.84 9.83 9.84 9.85
Total absorbed
energy (J)
1.24 1.33 1.71 2.23
Table 1 Chemical composition of various powders (wt. %)
Table 2 Preparation of specimens with middle layer
Table 3 Summarized results of wear test and Charpy impact test; without middle layer and three cases