Defect formation and prevention in directed energy deposition of high-manganese steels and the effect on mechanical properties

Kies, Fabian; Wilms, Markus Benjamin; Pirch, Norbert; Pradeep, Konda Gokuldoss; Schleifenbaum, Johannes Henrich; Haase, Christian

doi:10.1016/j.msea.2019.138688

Cited by 43 publications

(17 citation statements)

References 53 publications

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“…Chemical-thermal treatment, deformation, and some specialized techniques [5,6] can be attributed to methods for increasing corrosion resistance. However, the use of such methods may prove to be inexpedient due to the complexity of the manufacturing process for small service enterprises.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

Effect of vibration treatment on increasing the durability of tillage equipment working bodies

Dudnikov

Ivankova

Gorbenko

et al. 2021

EEJET

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This paper reports a study into the durability of tillage equipment working bodies. It has been established that the quality of surface layers during plastic deformation depends on a series of factors. These factors include the degree of hardening, the thickness of the hardened layer, the size and nature of the distribution of residual stresses. The study has shown that the technology to restore working bodies that involves vibration oscillations provides for higher durability. Investigation of deformed samples demonstrates that when exposed to vibration treatment, the microstructure is more fine-grained and even; the hardness of the treated surface of a ploughshare blade increases by 22‒35 %. This contributes to hardening the machined surface. It has been established that the tillage equipment working body wear is a random process, which is predetermined by changes in the structural dimensions and shape of cutting elements. An analysis of the wear distribution density of cutting elements has revealed its compliance with the law of normal distribution. It should be noted that the most influential geometric parameter of a working body affecting the part’s resource is the wear depth. This parameter determines the residual thickness of the ploughshare wall. Data from surface-layer studies at hardening make it possible to note a decrease in the limiting state of the examined parameters. In particular, the wear of a ploughshare tip was 17 % less than the limiting state. The study of durability has shown that the amount of tillage equipment working body wear is 1.28 times less when using vibrational plastic deformation. Accordingly, when restoring ploughshares, in order to increase the working bodies’ resource, it is more expedient to use a method that implies the welding of tires made from steel 45 involving sormite surfacing and vibration treatment

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Section: Literature Review and Problem Statementmentioning

confidence: 99%

Effect of vibration treatment on increasing the durability of tillage equipment working bodies

Dudnikov

Ivankova

Gorbenko

et al. 2021

EEJET

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“…Hu et al [ 15 ] studied the effect of temperature on the static recrystallization and plasticity of the Inconel 625 super-alloy, produced by the DED. Kies et al [ 16 ] considered the formation peculiarities, the mechanical properties, and the possibilities of preventing defects in the DED of high-manganese steels. Cui et al [ 17 ] studied the LMD process of 12CrNi2 steel and found relationships “process—microstructure—properties”.…”

Section: Introductionmentioning

confidence: 99%

On the Features of Composite Coating, Based on Nickel Alloy and Aluminum–Iron Bronze, Processed by Direct Metal Deposition

et al. 2021

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In recent years, additive manufacturing technologies have become increasingly widespread with the most intensive development being direct metal deposition (DMD), alloys, and ceramic materials on a metal substrate. This study shows the possibilities of the effective formation of coatings, based on heterogeneous metal alloys (Ni-based alloy and Fe-Al bronze) deposited onto 1045 structural steel. Changes in the microhardness, the microstructure, and the tribological properties of the composite coating, depending on the laser spot speed and pitch during DMD processing, have been considered. It was revealed that if the components of the composite coating are chosen correctly, there are possible DMD conditions ensuring reliable and durable connection between them and with the substrate.

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“…[1][2][3][4] Typically, metal AM provides high degrees of freedom in all aspects of component design, including alloy selection, (macro-)structural geometry and microstructural features. Some alloying systems that otherwise would require expensive conventional processing can be readily used in AM, such as refractory alloys, 3 high-manganese steels [5][6][7][8][9] or titanium aluminides. 10 One of the central benefits of metal AM lies within its unrivalled flexibility in building highly customized and complex geometries of macroscopic structures.…”

Section: Introductionmentioning

confidence: 99%

Optimal Design for Metal Additive Manufacturing: An Integrated Computational Materials Engineering (ICME) Approach

Motaman

Kies

Köhnen

et al. 2020

JOM

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We present our latest results on linking the process-structure-propertiesperformance (PSPP) chain for metal additive manufacturing (AM), using a multi-scale and multi-physics integrated computational materials engineering (ICME) approach. The abundance of design parameters and the complex relationship between those and the performance of AM parts have so far impeded the widespread adoption of metal AM technologies for structurally critical load-bearing components. To unfold the full potential of metal AM, establishing a full quantitative PSPP linkage is essential. It will not only help in understanding the underlying physics but will also serve as a powerful and effective tool for optimal computational design. In this work, we illustrate an example of ICME-based PSPP linkage in metal AM, along with a hybrid physics-based data-driven strategy for its application in the optimal design of a component. Finally, we discuss our outlook for the improvement of each part in the computational linking of the PSPP chain.

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Defect formation and prevention in directed energy deposition of high-manganese steels and the effect on mechanical properties

Cited by 43 publications

References 53 publications

Effect of vibration treatment on increasing the durability of tillage equipment working bodies

Effect of vibration treatment on increasing the durability of tillage equipment working bodies

On the Features of Composite Coating, Based on Nickel Alloy and Aluminum–Iron Bronze, Processed by Direct Metal Deposition

Optimal Design for Metal Additive Manufacturing: An Integrated Computational Materials Engineering (ICME) Approach

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