薛小炎,曾敏,许韶伟,陈月,王文先

• 1:太原理工大学材料科学与工程学院
• 2:山西职业技术学院

摘要(Abstract)：

采用电弧增材制造方法制备了FeNi36合金直壁构件，研究了其宏观力学性能、微观组织结构以及微纳力学性能。结果表明：由于增材制造过程中独特的热效应以及凝固过程中联生结晶、晶粒的竞争生长与择优生长导致形成了跨多层连续的柱状组织。直壁构件的维氏硬度为165～200 HV,超过了铸态殷瓦合金硬度，抗拉强度为481～512 MPa,达到了热轧状态的殷瓦合金性能。枝晶内与枝晶间的纳米力学硬度与断裂韧度相差较大，软硬相共存与柱状组织共同导致了拉伸性能的各向异性。

关键词(KeyWords)： FeNi36合金;电弧增材;微纳力学性能;各向异性;微观组织

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(52274390,52075360)

作者(Author): 薛小炎,曾敏,许韶伟,陈月,王文先

DOI: 10.13289/j.issn.1009-6264.2024-0052

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