Microstructure and mechanical properties of butt joints of QCr0.8/1Cr21Ni5Ti equal-thickness dissimilar materials by electron beam welding

Binggang Zhang; Lin Wu; Jicai Feng; Hongwei Li; Weipeng Yang

Microstructure and mechanical properties of butt joints of QCr0.8/1Cr21Ni5Ti equal-thickness dissimilar materials by electron beam welding

Binggang Zhang^*
, Lin Wu
, Jicai Feng
, Hongwei Li
, Weipeng Yang

^*Corresponding author for this work

School of Materials Science and Engineering

Harbin Institute of Technology

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

1 Scopus citations

Abstract

Butt joints of QCr0.8/1Cr21Ni5Ti equal-thickness dissimilar materials were obtained by electron beam welding with fixed accelerating voltage 60 kV and focus current 1.99 A, changed electron beam current and welding velocity. Microstructure and composition of the EBW joint were investigated by means of optical micrography and EDX analysis, and mechanical properties of the joint were also tested. The results show that joint's macrostructure was divided into three zones: top weld zone near QCr0.8 and bottom weld zone consisting of Cu(ss. Fe) with a certain amount of dispersedly distributed (α + ε) mixed microstructure, middle weld zone consisting of (α + ε) microstructure with a small amount of Cu(ss. Fe) particles. Morphological inhomogeneous macrostructure and uneven chemical composition of QCr0.8/1Cr21Ni5Ti joint by EBW are the most important factor to result in decreasing joining strength.

Original language	English
Pages (from-to)	97-100
Number of pages	4
Journal	China Welding (English Edition)
Volume	13
Issue number	2
State	Published - Nov 2004

Keywords

Dissimilar materials
Electron beam welding
Mechanical properties
Microstructure

Cite this

@article{db6855af9d974dc2a185c8abdbbfe573,

title = "Microstructure and mechanical properties of butt joints of QCr0.8/1Cr21Ni5Ti equal-thickness dissimilar materials by electron beam welding",

abstract = "Butt joints of QCr0.8/1Cr21Ni5Ti equal-thickness dissimilar materials were obtained by electron beam welding with fixed accelerating voltage 60 kV and focus current 1.99 A, changed electron beam current and welding velocity. Microstructure and composition of the EBW joint were investigated by means of optical micrography and EDX analysis, and mechanical properties of the joint were also tested. The results show that joint's macrostructure was divided into three zones: top weld zone near QCr0.8 and bottom weld zone consisting of Cu(ss. Fe) with a certain amount of dispersedly distributed (α + ε) mixed microstructure, middle weld zone consisting of (α + ε) microstructure with a small amount of Cu(ss. Fe) particles. Morphological inhomogeneous macrostructure and uneven chemical composition of QCr0.8/1Cr21Ni5Ti joint by EBW are the most important factor to result in decreasing joining strength.",

keywords = "Dissimilar materials, Electron beam welding, Mechanical properties, Microstructure",

author = "Binggang Zhang and Lin Wu and Jicai Feng and Hongwei Li and Weipeng Yang",

year = "2004",

month = nov,

language = "英语",

volume = "13",

pages = "97--100",

journal = "China Welding (English Edition)",

issn = "1004-5341",

publisher = "KeAi Communications Co.",

number = "2",

}

TY - JOUR

T1 - Microstructure and mechanical properties of butt joints of QCr0.8/1Cr21Ni5Ti equal-thickness dissimilar materials by electron beam welding

AU - Zhang, Binggang

AU - Wu, Lin

AU - Feng, Jicai

AU - Li, Hongwei

AU - Yang, Weipeng

PY - 2004/11

Y1 - 2004/11

N2 - Butt joints of QCr0.8/1Cr21Ni5Ti equal-thickness dissimilar materials were obtained by electron beam welding with fixed accelerating voltage 60 kV and focus current 1.99 A, changed electron beam current and welding velocity. Microstructure and composition of the EBW joint were investigated by means of optical micrography and EDX analysis, and mechanical properties of the joint were also tested. The results show that joint's macrostructure was divided into three zones: top weld zone near QCr0.8 and bottom weld zone consisting of Cu(ss. Fe) with a certain amount of dispersedly distributed (α + ε) mixed microstructure, middle weld zone consisting of (α + ε) microstructure with a small amount of Cu(ss. Fe) particles. Morphological inhomogeneous macrostructure and uneven chemical composition of QCr0.8/1Cr21Ni5Ti joint by EBW are the most important factor to result in decreasing joining strength.

AB - Butt joints of QCr0.8/1Cr21Ni5Ti equal-thickness dissimilar materials were obtained by electron beam welding with fixed accelerating voltage 60 kV and focus current 1.99 A, changed electron beam current and welding velocity. Microstructure and composition of the EBW joint were investigated by means of optical micrography and EDX analysis, and mechanical properties of the joint were also tested. The results show that joint's macrostructure was divided into three zones: top weld zone near QCr0.8 and bottom weld zone consisting of Cu(ss. Fe) with a certain amount of dispersedly distributed (α + ε) mixed microstructure, middle weld zone consisting of (α + ε) microstructure with a small amount of Cu(ss. Fe) particles. Morphological inhomogeneous macrostructure and uneven chemical composition of QCr0.8/1Cr21Ni5Ti joint by EBW are the most important factor to result in decreasing joining strength.

KW - Dissimilar materials

KW - Electron beam welding

KW - Mechanical properties

KW - Microstructure

UR - https://www.scopus.com/pages/publications/14844364399

M3 - 文章

AN - SCOPUS:14844364399

SN - 1004-5341

VL - 13

SP - 97

EP - 100

JO - China Welding (English Edition)

JF - China Welding (English Edition)

IS - 2

ER -

Microstructure and mechanical properties of butt joints of QCr0.8/1Cr21Ni5Ti equal-thickness dissimilar materials by electron beam welding

Abstract

Keywords

Other files and links

Fingerprint

Cite this