Wear and contact conductivity of multicomponent copper/stainless steel additively manufactured alloys in unlubricated sliding with passing electric current

IF 6.1 1区工程技术 Q1 ENGINEERING, MECHANICAL

Wear Pub Date : 2025-10-08 DOI:10.1016/j.wear.2025.206372

K.S. Osipovich, V.V. Fadin, N.L. Savchenko, A.V. Chumaevskii, A.O. Panfilov, E.N. Moskvichev, D.A. Gurianov, E.A. Kolubaev, S. Yu Tarasov

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Abstract

Multicomponent stainless steel/copper alloys were produced using dual-wire and electron beam additive manufacturing (WEBAM) with addition of 10 vol%, 25 vol% 36 vol% and 50 vol% of stainless steel. Tribological testing was carried out with and without passing electric current on samples oriented with their layers parallel and perpendicular to the worn surfaces. The ascending dependencies of wear and descending dependencies of coefficient of friction from electric current density have been obtained along with the voltage current ones to characterize the sliding contact performance. At low current levels, sliding behavior was similar to that in dry sliding conditions, characterized by adhesive wear and the formation of tribological transfer layers formed on the worn surfaces. Passing higher currents led to the formation of smooth tribological layers containing the in-situ formed spinels with the wear mechanism transition to flow wear. The wear dependencies did not allow observing the differences that related to the sample orientation with respect to worn surface because of generation of mechanically mixed layers.

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多组分铜/不锈钢增材制造合金在无润滑滑动下的接触电导率和磨损

采用双丝和电子束增材制造技术（WEBAM），分别添加10 vol%、25 vol%、36 vol%和50 vol%的不锈钢，制备了多组分不锈钢/铜合金。在与磨损表面平行和垂直的样品上进行了有电流和没有电流的摩擦学测试。得到了摩擦系数随电流密度和电压密度的上升关系和摩擦系数随电流密度的下降关系来表征滑动接触性能。在低电流水平下，滑动行为与干滑动条件相似，其特征是粘着磨损和在磨损表面形成摩擦学转移层。通过较大的电流，形成含有原位尖晶石的光滑摩擦层，磨损机制向流动磨损转变。由于机械混合层的产生，磨损依赖性不允许观察与磨损表面有关的样品方向的差异。

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来源期刊

Wear 工程技术-材料科学：综合

CiteScore

8.80

自引率

8.00%

发文量

280

审稿时长

47 days

期刊介绍： Wear journal is dedicated to the advancement of basic and applied knowledge concerning the nature of wear of materials. Broadly, topics of interest range from development of fundamental understanding of the mechanisms of wear to innovative solutions to practical engineering problems. Authors of experimental studies are expected to comment on the repeatability of the data, and whenever possible, conduct multiple measurements under similar testing conditions. Further, Wear embraces the highest standards of professional ethics, and the detection of matching content, either in written or graphical form, from other publications by the current authors or by others, may result in rejection.