Surface Inoculation of Aluminium Powders for Additive Manufacturing Guided by Differential Fast Scanning Calorimetry

被引：2

作者：

Tasche, Lennart ^{[1
,6
]}

Hoyer, Kay-Peter ^{[1
,6
]}

Zhuravlev, Evgeny ^{[2
,3
]}

Grundmeier, Guido ^{[4
,6
]}

Schaper, Mirko ^{[1
,6
]}

Kessler, Olaf ^{[5
]}

机构：

[1] Paderborn Univ, Chair Mat Sci, Warburgerstr 100, D-33098 Paderborn, Germany

[2] Univ Rostock, Inst Phys, Albert Einstein Str 25, D-18051 Rostock, Germany

[3] Univ Rostock, CALOR, Albert Einstein Str 25, D-18051 Rostock, Germany

[4] Paderborn Univ, Tech & Macromol Chem, Warburger Str 100, D-33098 Paderborn, Germany

[5] Univ Rostock, Chair Mat Sci, Albert Einstein Str 2, D-18059 Rostock, Germany

[6] Paderborn Univ, DMRC, Mersingweg 3, D-33100 Paderborn, Germany

来源：

TMS 2019 148TH ANNUAL MEETING & EXHIBITION SUPPLEMENTAL PROCEEDINGS | 2019年

关键词：

High-strength alloys; Laser beam melting; Surface inoculation; Grain refinement; DSC; GRAIN-REFINEMENT; ALLOYS;

D O I：

10.1007/978-3-030-05861-6_45

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

To improve the solidification process of laser beam melting (LBM), and thus enable the printing of hard-to-weld high-strength aluminum alloys, the project is designed to modify the powder surface by adding nanoparticles for a guided nucleation. In situ testing of the fast melting and solidification process of single particles will be performed using differential fast scanning calorimetry (DFSC). DFSC results will be transferred to LBM of aluminum alloys and used to adjust parameter settings. Specimens will be printed, to check crack formation and physical as well as mechanical material properties. The aluminum alloy EN AW-7075 (EN AW-AlZnMgCu1.5, Al7075) is themost common high-strength aluminum alloy used inmechanical engineering, aircraft industry and, due to new developments like press quenching, also in the automobile industry. Due to the importance of Al7075, this research focusses on inoculating its powder particles and thus, enables crack and porosity free 3D printing.

引用

页码：485 / 493

页数：9

共 12 条

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