Study on local heat transfer of 18Ni maraging steel after electron beam welding

Xiaofeng Chen; Jiahan Li; Zhongku Li; Fangjun Liu

doi:10.1002/srin.199401214

Study on local heat transfer of 18Ni maraging steel after electron beam welding

Xiaofeng Chen^*
, Jiahan Li
, Zhongku Li
, Fangjun Liu

^*Corresponding author for this work

Chinese Academy of Sciences

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

8 Scopus citations

Abstract

This study is concerned with the improvement of the strength of 2401 MPa maraging steel weldments. In order to increase the strength of the weld metal by 10%, solidified structures of weld metal are controlled by electron-beam scanning welding. By subjecting the joint to local aging treatment, ultimate strength of the base metal is increased by approximately 96%. The fracture appearance show small reinforced dimples. Residual austinite uniformly distributes at the boundaries of cellular dendrites. Ti and Mo segregate at the boundaries and form reinforced phases consisting Ni and Ti or Ni and Mo. A new opinion that electron-beam high-speed isothermal heating local aging treatment strengthens austinite but not martensite is emphasized.

Original language	English
Pages (from-to)	557-560
Number of pages	4
Journal	Steel Research
Volume	65
Issue number	12
DOIs	https://doi.org/10.1002/srin.199401214
State	Published - 1994
Externally published	Yes

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title = "Study on local heat transfer of 18Ni maraging steel after electron beam welding",

abstract = "This study is concerned with the improvement of the strength of 2401 MPa maraging steel weldments. In order to increase the strength of the weld metal by 10\%, solidified structures of weld metal are controlled by electron-beam scanning welding. By subjecting the joint to local aging treatment, ultimate strength of the base metal is increased by approximately 96\%. The fracture appearance show small reinforced dimples. Residual austinite uniformly distributes at the boundaries of cellular dendrites. Ti and Mo segregate at the boundaries and form reinforced phases consisting Ni and Ti or Ni and Mo. A new opinion that electron-beam high-speed isothermal heating local aging treatment strengthens austinite but not martensite is emphasized.",

author = "Xiaofeng Chen and Jiahan Li and Zhongku Li and Fangjun Liu",

year = "1994",

doi = "10.1002/srin.199401214",

language = "英语",

volume = "65",

pages = "557--560",

journal = "Steel Research",

issn = "0177-4832",

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T1 - Study on local heat transfer of 18Ni maraging steel after electron beam welding

AU - Chen, Xiaofeng

AU - Li, Jiahan

AU - Li, Zhongku

AU - Liu, Fangjun

PY - 1994

Y1 - 1994

N2 - This study is concerned with the improvement of the strength of 2401 MPa maraging steel weldments. In order to increase the strength of the weld metal by 10%, solidified structures of weld metal are controlled by electron-beam scanning welding. By subjecting the joint to local aging treatment, ultimate strength of the base metal is increased by approximately 96%. The fracture appearance show small reinforced dimples. Residual austinite uniformly distributes at the boundaries of cellular dendrites. Ti and Mo segregate at the boundaries and form reinforced phases consisting Ni and Ti or Ni and Mo. A new opinion that electron-beam high-speed isothermal heating local aging treatment strengthens austinite but not martensite is emphasized.

AB - This study is concerned with the improvement of the strength of 2401 MPa maraging steel weldments. In order to increase the strength of the weld metal by 10%, solidified structures of weld metal are controlled by electron-beam scanning welding. By subjecting the joint to local aging treatment, ultimate strength of the base metal is increased by approximately 96%. The fracture appearance show small reinforced dimples. Residual austinite uniformly distributes at the boundaries of cellular dendrites. Ti and Mo segregate at the boundaries and form reinforced phases consisting Ni and Ti or Ni and Mo. A new opinion that electron-beam high-speed isothermal heating local aging treatment strengthens austinite but not martensite is emphasized.

UR - https://www.scopus.com/pages/publications/0028743495

U2 - 10.1002/srin.199401214

DO - 10.1002/srin.199401214

M3 - 文章

AN - SCOPUS:0028743495

SN - 0177-4832

VL - 65

SP - 557

EP - 560

JO - Steel Research

JF - Steel Research

IS - 12

ER -

Study on local heat transfer of 18Ni maraging steel after electron beam welding

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