Comparison of Submerged Arc Welding Process Modification Influence on Thermal Strain by in-situ Neutron Diffraction

被引：1

作者：

Sharma, Rahul ^{[1
]}

Reisgen, Uwe

Hofmann, Michael ^{[2
]}

机构：

[1] Rhein Westfal TH Aachen, Welding & Joining Inst, Pontstr 49, D-52062 Aachen, Germany

[2] Tech Univ Munich, FRMII, Heinz Maier Leibniz Zentrum, Lichtenbergstr 1, D-85747 Garching, Germany

来源：

RESIDUAL STRESSES 2016: ICRS-10 | 2017年 / 2卷

关键词：

Neutron Diffraction; Strain Analysis; in-situ Experiment; Submerged Arc Welding; Cold Wire;

D O I：

10.21741/9781945291173-90

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

In this paper the application of neutron diffraction for measuring the thermal strain field in the vicinity of the weld pool during submerged arc welding is described. The aim of the research was to determine the influence of a welding process modification on the thermal strain within a sample rod. The welding experiment was carried out on the instrument STRESS-SPEC at the MLZ FRMII facility in Garching, Germany. Submerged arc welding equipment with additional cold wire feeding was adapted to the diffractometer and thereon single layer bead-on-plate welds were carried out. Sample rods made of the nickel base alloy 625 were used. The measured strain values are presented and discussed with respect to the resulting weld bead geometry and the thermal profile within the sample.

引用

页码：533 / 538

页数：6

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