Scholarlink

Abstract <p>The possibility of synthesizing a functionally graded material by direct laser deposition (DLD) with ultrasonic excitation was investigated. A Langevin-type transducer with an output of 100 W and a frequency of 20 kHz was used as the high-frequency vibration source. The transitional structure from EuTroLoy 16316D.04 stainless steel to the nickel alloy Inconel 625 was studied. Thanks to the ultrasonic excitation, a structure composed of equiaxed columnar dendrites was obtained. The elemental distribution along the central line of the specimens’ cross-section was analyzed. The influence of ultrasonic vibrations on the relative contents of Fe and Ni was noted, producing a smoothing of the elemental composition across the transition from one composition to the other. Microhardness analysis along a line parallel to the central line of the cross-section showed a decrease in microhardness when transitioning from 100% Inconel 625 to 100% stainless steel, while the microhardness measured with ultrasonic excitation was 5–7% higher than that measured without it.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Synthesis of Functional-Gradient Material by Direct Laser Deposition with Ultrasonic Impact

  • 期刊论文

  • 发表日期：

    2026年4月26日

查看全文
  • I. V. Shvarts,
  • S. A. Nikiforov,
  • A. I. Gorunov,
  • A. Kh. Gilmutdinov

摘要

Abstract

The possibility of synthesizing a functionally graded material by direct laser deposition (DLD) with ultrasonic excitation was investigated. A Langevin-type transducer with an output of 100 W and a frequency of 20 kHz was used as the high-frequency vibration source. The transitional structure from EuTroLoy 16316D.04 stainless steel to the nickel alloy Inconel 625 was studied. Thanks to the ultrasonic excitation, a structure composed of equiaxed columnar dendrites was obtained. The elemental distribution along the central line of the specimens’ cross-section was analyzed. The influence of ultrasonic vibrations on the relative contents of Fe and Ni was noted, producing a smoothing of the elemental composition across the transition from one composition to the other. Microhardness analysis along a line parallel to the central line of the cross-section showed a decrease in microhardness when transitioning from 100% Inconel 625 to 100% stainless steel, while the microhardness measured with ultrasonic excitation was 5–7% higher than that measured without it.