Transient Liquid Phase Bonding of Nickel-Base Single Crystal Alloy with a Novel Ni-Cr-Co-Mo-W-Ta-Re-B Amorphous Interlayer

Wei Guo; Haiyan Wang; Qiang Jia; Peng Peng; Ying Zhu

doi:10.1515/htmp-2015-0243

Transient Liquid Phase Bonding of Nickel-Base Single Crystal Alloy with a Novel Ni-Cr-Co-Mo-W-Ta-Re-B Amorphous Interlayer

Wei Guo
, Haiyan Wang
, Qiang Jia
, Peng Peng^*
, Ying Zhu

^*Corresponding author for this work

School of Mechanical Engineering and Automation

Beihang University

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

7 Scopus citations

Abstract

A novel Ni-Cr-Co-W-Mo-Ta-Re-B alloy consisting of plate γ and M₂₃B₆ phases was prepared as interlayer for the transient liquid phase (TLP) bonding of Rene' N5 nickel-base single crystal superalloy. The molten Ni-Cr-Co-W-Mo-Ta-Re-B alloy exhibited an excellent wettability on the nickel-base superalloy. The TLP bonding experiment has been carried out in vacuum furnace at 1,240 °C for 12 h and followed by post-weld heat treatment (PWHT) at 1,305 °C for 4 h. PWHT eliminated the intermetallic compounds and promoted the formation of γ precipitates in the bonding region. A more uniform microhardness profile of TLP joint was found after PWHT. The shear strength of the joint after PWHT significantly increased to 533.4 MPa compared with the value of 437.2 MPa without PWHT.

Original language	English
Pages (from-to)	677-682
Number of pages	6
Journal	High Temperature Materials and Processes
Volume	36
Issue number	7
DOIs	https://doi.org/10.1515/htmp-2015-0243
State	Published - 1 Aug 2017

Keywords

TLP bonding
interlayer alloy
microstructure
post-weld heat treatment
wettability

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title = "Transient Liquid Phase Bonding of Nickel-Base Single Crystal Alloy with a Novel Ni-Cr-Co-Mo-W-Ta-Re-B Amorphous Interlayer",

abstract = "A novel Ni-Cr-Co-W-Mo-Ta-Re-B alloy consisting of plate γ and M23B6 phases was prepared as interlayer for the transient liquid phase (TLP) bonding of Rene' N5 nickel-base single crystal superalloy. The molten Ni-Cr-Co-W-Mo-Ta-Re-B alloy exhibited an excellent wettability on the nickel-base superalloy. The TLP bonding experiment has been carried out in vacuum furnace at 1,240 °C for 12 h and followed by post-weld heat treatment (PWHT) at 1,305 °C for 4 h. PWHT eliminated the intermetallic compounds and promoted the formation of γ precipitates in the bonding region. A more uniform microhardness profile of TLP joint was found after PWHT. The shear strength of the joint after PWHT significantly increased to 533.4 MPa compared with the value of 437.2 MPa without PWHT.",

keywords = "TLP bonding, interlayer alloy, microstructure, post-weld heat treatment, wettability",

author = "Wei Guo and Haiyan Wang and Qiang Jia and Peng Peng and Ying Zhu",

note = "Publisher Copyright: {\textcopyright} 2017 Walter de Gruyter GmbH, Berlin/Boston.",

year = "2017",

month = aug,

day = "1",

doi = "10.1515/htmp-2015-0243",

language = "英语",

volume = "36",

pages = "677--682",

journal = "High Temperature Materials and Processes",

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T1 - Transient Liquid Phase Bonding of Nickel-Base Single Crystal Alloy with a Novel Ni-Cr-Co-Mo-W-Ta-Re-B Amorphous Interlayer

AU - Guo, Wei

AU - Wang, Haiyan

AU - Jia, Qiang

AU - Peng, Peng

AU - Zhu, Ying

PY - 2017/8/1

Y1 - 2017/8/1

N2 - A novel Ni-Cr-Co-W-Mo-Ta-Re-B alloy consisting of plate γ and M23B6 phases was prepared as interlayer for the transient liquid phase (TLP) bonding of Rene' N5 nickel-base single crystal superalloy. The molten Ni-Cr-Co-W-Mo-Ta-Re-B alloy exhibited an excellent wettability on the nickel-base superalloy. The TLP bonding experiment has been carried out in vacuum furnace at 1,240 °C for 12 h and followed by post-weld heat treatment (PWHT) at 1,305 °C for 4 h. PWHT eliminated the intermetallic compounds and promoted the formation of γ precipitates in the bonding region. A more uniform microhardness profile of TLP joint was found after PWHT. The shear strength of the joint after PWHT significantly increased to 533.4 MPa compared with the value of 437.2 MPa without PWHT.

AB - A novel Ni-Cr-Co-W-Mo-Ta-Re-B alloy consisting of plate γ and M23B6 phases was prepared as interlayer for the transient liquid phase (TLP) bonding of Rene' N5 nickel-base single crystal superalloy. The molten Ni-Cr-Co-W-Mo-Ta-Re-B alloy exhibited an excellent wettability on the nickel-base superalloy. The TLP bonding experiment has been carried out in vacuum furnace at 1,240 °C for 12 h and followed by post-weld heat treatment (PWHT) at 1,305 °C for 4 h. PWHT eliminated the intermetallic compounds and promoted the formation of γ precipitates in the bonding region. A more uniform microhardness profile of TLP joint was found after PWHT. The shear strength of the joint after PWHT significantly increased to 533.4 MPa compared with the value of 437.2 MPa without PWHT.

KW - TLP bonding

KW - interlayer alloy

KW - microstructure

KW - post-weld heat treatment

KW - wettability

UR - https://www.scopus.com/pages/publications/85026768519

U2 - 10.1515/htmp-2015-0243

DO - 10.1515/htmp-2015-0243

M3 - 文章

AN - SCOPUS:85026768519

SN - 0334-6455

VL - 36

SP - 677

EP - 682

JO - High Temperature Materials and Processes

JF - High Temperature Materials and Processes

IS - 7

ER -

Transient Liquid Phase Bonding of Nickel-Base Single Crystal Alloy with a Novel Ni-Cr-Co-Mo-W-Ta-Re-B Amorphous Interlayer

Abstract

Keywords

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