CMT-based wire arc additive manufacturing of Inconel 625 alloy

IF 1.3 4区材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY

Emerging Materials Research Pub Date : 2023-09-01 DOI:10.1680/jemmr.23.00053

J. Junwen, A. Zavdoveev, D. Vedel, T. Baudin, S. Motrunich, I. Klochkov, S. Friederichs, N. Strelenko, M. Skoryk

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引用次数: 1

Abstract

Cold metal transfer (CMT) technology is considered in an application for wire arc additive manufacturing WAAM of refractory high corrosion resistant Inconel 625 alloy. Based on the fabricated wall it has been shown the suitability of CMT WAAM for the sound formation of weld and homogenous distribution of mechanical properties has been shown. Microscopy analysis has revealed that the microstructure of the deposited alloy along the height of the wall element is relatively uniform. The minor differences in the microstructure are observed in the bottom part, caused by welding specifically. It should be noted that there is a slight decrease in strength indicators from the bottom to the top of the welded product, but they do not exceed 5%, which is considered entirely satisfactory. This phenomenon is caused by structural transformations that take place in slightly different cooling conditions, namely in the lower layers, the substrate on which the surfacing was carried out plays a more significant role in heat flow. This leads to more intensive cooling of the lower layers and as a result slightly higher values of strength.

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铬镍铁合金625的CMT基电弧增材制造

将冷金属转移（CMT）技术应用于难熔高耐蚀Inconel 625合金的线弧增材制造WAAM。基于预制壁，已经表明CMT WAAM适用于焊缝的良好形成和机械性能的均匀分布。显微镜分析表明，沉积合金的微观结构沿着壁元件的高度是相对均匀的。在底部观察到微观结构的微小差异，这是由焊接引起的。应该注意的是，从焊接产品的底部到顶部，强度指标略有下降，但不超过5%，这被认为是完全令人满意的。这种现象是由在稍微不同的冷却条件下发生的结构转变引起的，即在较低的层中，进行堆焊的基底在热流中起着更重要的作用。这导致较低层的更密集的冷却，并且因此强度值略高。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Emerging Materials Research MATERIALS SCIENCE, MULTIDISCIPLINARY-

CiteScore

4.50

自引率

9.10%

发文量

期刊介绍： Materials Research is constantly evolving and correlations between process, structure, properties and performance which are application specific require expert understanding at the macro-, micro- and nano-scale. The ability to intelligently manipulate material properties and tailor them for desired applications is of constant interest and challenge within universities, national labs and industry.