Scholarlink

Powder Bed Fusion-Laser Beam (PBF-LB/M) enables the production of Functionally Graded Materials (FGMs) with tailored properties for specific applications. This study explores a novel method for creating FGMs within layers using a custom powder separation system that integrates seamlessly with existing PBF-LB plants employing blade/roller spreading. Two distinct approaches were implemented: the ex-situ method, where powders were pre-mixed before deposition in transition zones; and the other, which employed an innovative setup for in-situ real-time powder mixing during deposition. AISI 316L stainless steel and CoCrMo alloy were chosen for their excellent mechanical properties, biocompatibility and corrosion resistance, making them optimal for aerospace and biomedical applications. Results from microstructural analysis, mechanical testing and chemical characterization confirm the reliability and cost-effectiveness of this approach, highlighting its potential to advance multi-material AM.

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

Novel Approaches for Layer-Level Functionally Graded Materials via PBF-LB/M

  • 章节

  • 发表日期：

    2025年

查看全文
  • Vito Errico,
  • Paolo Posa,
  • Sabina Luisa Campanelli

摘要

Powder Bed Fusion-Laser Beam (PBF-LB/M) enables the production of Functionally Graded Materials (FGMs) with tailored properties for specific applications. This study explores a novel method for creating FGMs within layers using a custom powder separation system that integrates seamlessly with existing PBF-LB plants employing blade/roller spreading. Two distinct approaches were implemented: the ex-situ method, where powders were pre-mixed before deposition in transition zones; and the other, which employed an innovative setup for in-situ real-time powder mixing during deposition. AISI 316L stainless steel and CoCrMo alloy were chosen for their excellent mechanical properties, biocompatibility and corrosion resistance, making them optimal for aerospace and biomedical applications. Results from microstructural analysis, mechanical testing and chemical characterization confirm the reliability and cost-effectiveness of this approach, highlighting its potential to advance multi-material AM.