Microstructure and residual stress distribution of electron beam-welded joints of a 50 mm-thick TA15 titanium alloy plate
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Xilong Zhao
,
Feng He
Abstract
Vacuum electron beam welding was applied to a 50 mm-thick TA15 titanium alloy plate. Microstructure observation and microhardness testing were performed. Meanwhile, the residual stress on the surface at different distances from the weld centre was measured via the hole drilling method. A finite element model for electron beam welding of the TA15 titanium alloy plate was constructed on commercial finite element software. Experimental results showed that the microstructure of the weld zone consisted of a basket martensitic phase. The highest microhardness in the weld zone was 409 HV, and the microhardness of the base metal was the lowest. The maximum gradient change area was located at the HAZ near the base metal. The peak value of longitudinal residual stress from the simulation was 880 MPa, which was in the weld metal. The sharp change area of longitudinal residual stress gradient was located in the base metal near HAZ.
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Research ethics: Not applicable.
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Author contributions: The authors have accepted responsibility for the entire content of this manuscript and approved its submission.
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Competing interests: The authors declare no competing interests.
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Research funding: Natural Science Foundation of Gansu Province, China (No. 20JR5RA416); National Natural Science Foundation of China (No.51605384); Foundation of the Young Teachers in Lanzhou Jiaotong University (2017049); Gansu Provincial Young Doctors Fund (No. 2023QB-046). This project also is strongly supported by associate professor Li Yuanbo, Lanzhou Jiaotong University.
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Data availability: The raw data can be obtained on request from the corresponding author.
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Artikel in diesem Heft
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- News
- DGM – Deutsche Gesellschaft für Materialkunde
Artikel in diesem Heft
- Frontmatter
- Original Papers
- Fabrication of magnetically separable Ag–ZnFe2O4 hollow nanospheres with efficient photocatalytic activity
- Optimization of magnetic properties of MnFe2O4 by modulating molarity of NaOH as precipitating agent
- Effect of synthesis method on structural and magnetic properties of La0.7Ca0.2Ba0.1MnO3
- Exploring the functional abilities of PVA–combeite composites as potential candidates for bone substitutes
- Study of optical, structural and radiation shielding properties of (55 − x)TeO2–20ZnO–25B2O3–xEr2O3 glass matrix
- Effect of post-weld heat treatment on corrosion resistance of X90 pipeline steel joints
- Microstructure and residual stress distribution of electron beam-welded joints of a 50 mm-thick TA15 titanium alloy plate
- News
- DGM – Deutsche Gesellschaft für Materialkunde
