Microstructures of Ni-Cr-Ti-Al laser claddings on K418 superalloy

Gen Xiang Luo; Guo Qing Wu; Zheng Huang; Zhong Jian Ruan

Microstructures of Ni-Cr-Ti-Al laser claddings on K418 superalloy

Gen Xiang Luo^*
, Guo Qing Wu
, Zheng Huang
, Zhong Jian Ruan

^*Corresponding author for this work

School of Materials Science and Engineering

Beihang University

Research output: Contribution to journal › Article › peer-review

8 Scopus citations

Abstract

Ni-Cr-Ti-Al cladding powders were mixed by using mechanical ball milling technique. Ni-Cr-Ti-Al laser cladding layers with different chemical composition on superalloy K418 were prepared by CO₂ laser. By means of optical microscopy (OM), scan electron microscopy (SEM) and X-ray diffraction (XRD), microstructures of cladding layers were studied, and micro-hardness was measured. The results show that, during the process of laser cladding, Ni₃ (Al, Ti), Ni₂TiAl, NiAl and Ni₃Ti intermetallic compounds are formed resulting from the interaction of Ti, Al and Ni. Microstructures of Ni-Cr-Ti-Al cladding layers are characterized by massive Ni₂TiAl, Ni₃Ti or NiAl distributing between Ni₃(Al, Ti) dendritic. Ni-Cr-Ti-Al laser cladding layer with the chemical composition of Ni66. HCr7. 35Til4. 39A112. 15 is beneficial to the diffusion bonding between TiAl alloy and K418 superalloy.

Original language	English
Pages (from-to)	283-287
Number of pages	5
Journal	Zhongguo Jiguang/Chinese Journal of Lasers
Volume	34
Issue number	2
State	Published - Feb 2007

Keywords

Laser cladding
Laser technique
Microstructure
Ni based superalloy
TiAl based alloy

Cite this

@article{74e36aade37441d8a4f361c300896a9a,

title = "Microstructures of Ni-Cr-Ti-Al laser claddings on K418 superalloy",

abstract = "Ni-Cr-Ti-Al cladding powders were mixed by using mechanical ball milling technique. Ni-Cr-Ti-Al laser cladding layers with different chemical composition on superalloy K418 were prepared by CO2 laser. By means of optical microscopy (OM), scan electron microscopy (SEM) and X-ray diffraction (XRD), microstructures of cladding layers were studied, and micro-hardness was measured. The results show that, during the process of laser cladding, Ni3 (Al, Ti), Ni2TiAl, NiAl and Ni3Ti intermetallic compounds are formed resulting from the interaction of Ti, Al and Ni. Microstructures of Ni-Cr-Ti-Al cladding layers are characterized by massive Ni2TiAl, Ni3Ti or NiAl distributing between Ni3(Al, Ti) dendritic. Ni-Cr-Ti-Al laser cladding layer with the chemical composition of Ni66. HCr7. 35Til4. 39A112. 15 is beneficial to the diffusion bonding between TiAl alloy and K418 superalloy.",

keywords = "Laser cladding, Laser technique, Microstructure, Ni based superalloy, TiAl based alloy",

author = "Luo, \{Gen Xiang\} and Wu, \{Guo Qing\} and Zheng Huang and Ruan, \{Zhong Jian\}",

year = "2007",

month = feb,

language = "英语",

volume = "34",

pages = "283--287",

journal = "Zhongguo Jiguang/Chinese Journal of Lasers",

issn = "0258-7025",

publisher = "Chinese Laser Press",

number = "2",

}

TY - JOUR

T1 - Microstructures of Ni-Cr-Ti-Al laser claddings on K418 superalloy

AU - Luo, Gen Xiang

AU - Wu, Guo Qing

AU - Huang, Zheng

AU - Ruan, Zhong Jian

PY - 2007/2

Y1 - 2007/2

N2 - Ni-Cr-Ti-Al cladding powders were mixed by using mechanical ball milling technique. Ni-Cr-Ti-Al laser cladding layers with different chemical composition on superalloy K418 were prepared by CO2 laser. By means of optical microscopy (OM), scan electron microscopy (SEM) and X-ray diffraction (XRD), microstructures of cladding layers were studied, and micro-hardness was measured. The results show that, during the process of laser cladding, Ni3 (Al, Ti), Ni2TiAl, NiAl and Ni3Ti intermetallic compounds are formed resulting from the interaction of Ti, Al and Ni. Microstructures of Ni-Cr-Ti-Al cladding layers are characterized by massive Ni2TiAl, Ni3Ti or NiAl distributing between Ni3(Al, Ti) dendritic. Ni-Cr-Ti-Al laser cladding layer with the chemical composition of Ni66. HCr7. 35Til4. 39A112. 15 is beneficial to the diffusion bonding between TiAl alloy and K418 superalloy.

AB - Ni-Cr-Ti-Al cladding powders were mixed by using mechanical ball milling technique. Ni-Cr-Ti-Al laser cladding layers with different chemical composition on superalloy K418 were prepared by CO2 laser. By means of optical microscopy (OM), scan electron microscopy (SEM) and X-ray diffraction (XRD), microstructures of cladding layers were studied, and micro-hardness was measured. The results show that, during the process of laser cladding, Ni3 (Al, Ti), Ni2TiAl, NiAl and Ni3Ti intermetallic compounds are formed resulting from the interaction of Ti, Al and Ni. Microstructures of Ni-Cr-Ti-Al cladding layers are characterized by massive Ni2TiAl, Ni3Ti or NiAl distributing between Ni3(Al, Ti) dendritic. Ni-Cr-Ti-Al laser cladding layer with the chemical composition of Ni66. HCr7. 35Til4. 39A112. 15 is beneficial to the diffusion bonding between TiAl alloy and K418 superalloy.

KW - Laser cladding

KW - Laser technique

KW - Microstructure

KW - Ni based superalloy

KW - TiAl based alloy

UR - https://www.scopus.com/pages/publications/34247213361

M3 - 文章

AN - SCOPUS:34247213361

SN - 0258-7025

VL - 34

SP - 283

EP - 287

JO - Zhongguo Jiguang/Chinese Journal of Lasers

JF - Zhongguo Jiguang/Chinese Journal of Lasers

IS - 2

ER -

Microstructures of Ni-Cr-Ti-Al laser claddings on K418 superalloy

Abstract

Keywords

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