焊接铁素体钢包层奥氏体不锈钢复合管的三轴残余应力

Y. Taran, J. Schreiber, A. Balagurov, U. Stuhr, H. Kockelmann, V. Zlokazov
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引用次数: 1

摘要

在PSI SINQ中子脉冲装置的POLDI仪器上,用飞行时间中子衍射法测量了焊接铁素体钢包层的奥氏体不锈钢复合管的三轴残余应力。并将POLDI计算结果与破坏性车削法和环芯法计算结果以及有限元法计算的理论预测结果进行了比较。仅对于应力张量的切向分量,所有方法的半定量一致。在轴向分量上,不同方法的结果有明显的差异。然而,对于径向分量,所有方法都显示出相当小的应力,在它们的分布上有一些明显的差异。
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Triaxial residual stresses in composite tube from austenitic stainless steel with welded ferritic steel cladding
The triaxial residual stresses in a composite tube from an austenitic stainless steel with a welded ferritic steel cladding were measured by the time-of-flight neutron diffraction method on the POLDI instrument at the PSI SINQ neutron pulsed facility. The POLDI results are compared to the results obtained by the destructive turning out and ring core methods and theoretical predictions of calculations by the finite element method. Only for the tangential component of the stress tensor the semiquantitative agreement of the all used methods was observed. There was a clear discrepancy between the results of the different methods in the axial component. For the radial component all methods reveal quite small stresses, however, with some distinct differences in their distributions.
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来源期刊
CiteScore
1.47
自引率
0.00%
发文量
0
审稿时长
3 months
期刊介绍: Zeitschrift für Kristallographie International journal for structural, physical, and chemical aspects of crystalline materials ISSN 0044-2968 Founded in 1877 by Paul Groth Zeitschrift für Kristallographie is one of the world’s oldest scientific journals. In original papers, letters and review articles it presents results of theoretical or experimental study on crystallography.
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