Dual crack inhibition mechanism of nano-TiC in steel–copper heterostructures formed by laser powder bed fusion

IF 8.6 1区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Research Letters Pub Date : 2023-10-17 DOI:10.1080/21663831.2023.2264346

Xiaoqiang Wang, Yan Zhou, Shifeng Wen, Yusheng Shi

引用次数: 0

Abstract

The formation of microcracks at the interface of steel–copper heterostructures is prone to premature failure, which severely limits the application of heterostructure components. Herein, a new approach was proposed by doping nano-TiC in interface forming by laser powder bed fusion (L-PBF) to prevent the hot crack nucleation and block the solid-state crack propagation in steel–copper heterostructures . Benefitting from the TiC doping, the tensile strength of laminated steel–copper structures increased from 372 to 526 MPa. The findings of this research present a new approach to inhibit cracking in the fabrication of heterostructure component manufacturing using L-PBF.

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纳米tic在激光粉末床熔合形成的钢-铜异质结构中的双裂纹抑制机制

钢-铜异质组织界面处形成的微裂纹容易过早失效，严重限制了异质组织构件的应用。本文提出了在激光粉末床熔合界面中掺杂纳米tic的新方法，以防止钢-铜异质组织的热裂纹形核和阻止固态裂纹扩展。TiC的掺入使钢-铜层合结构的抗拉强度从372 MPa提高到526 MPa。本研究结果为利用L-PBF制造异质结构件提供了一种抑制裂纹的新方法。

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

Materials Research Letters Materials Science-General Materials Science

CiteScore

12.10

自引率

3.60%

发文量

审稿时长

3.3 months

期刊介绍： Materials Research Letters is a high impact, open access journal that focuses on the engineering and technology of materials, materials physics and chemistry, and novel and emergent materials. It supports the materials research community by publishing original and compelling research work. The journal provides fast communications on cutting-edge materials research findings, with a primary focus on advanced metallic materials and physical metallurgy. It also considers other materials such as intermetallics, ceramics, and nanocomposites. Materials Research Letters publishes papers with significant breakthroughs in materials science, including research on unprecedented mechanical and functional properties, mechanisms for processing and formation of novel microstructures (including nanostructures, heterostructures, and hierarchical structures), and the mechanisms, physics, and chemistry responsible for the observed mechanical and functional behaviors of advanced materials. The journal accepts original research articles, original letters, perspective pieces presenting provocative and visionary opinions and views, and brief overviews of critical issues.