An integrated computational materials engineering-anchored closed-loop method for design of aluminum alloys for additive manufacturing

被引：59

作者：

Thapliyal, Saket ^{[1
]}

Komarasamy, Mageshwari ^{[1
,3
]}

Shukla, Shivakant ^{[1
]}

Zhou, Le ^{[2
]}

Hyer, Holden ^{[2
]}

Park, Sharon ^{[2
]}

Sohn, Yongho ^{[2
]}

Mishra, Rajiv S. ^{[1
]}

机构：

[1] Univ North Texas, Ctr Frict Stir Proc, Adv Mat & Mfg Proc Inst, Dept Mat Sci & Engn, Denton, TX 76207 USA

[2] Univ Cent Florida, Dept Mat Sci & Engn, Adv Mat Proc & Anal Ctr, Orlando, FL 32816 USA

[3] Pacific Northwest Natl Lab, Energy & Environm Directorate, 902 Battelle Blvd, Richland, WA 99354 USA

来源：

MATERIALIA | 2020年 / 9卷

关键词：

Aluminum alloys; CALPHAD; Alloy design; Additive manufacturing (AM); Atomization; MECHANICAL-PROPERTIES; MICROSTRUCTURE; SCANDIUM; BEHAVIOR; SC; PRECIPITATION; CORROSION; STRENGTH;

D O I：

10.1016/j.mtla.2019.100574

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A closed-loop approach based on integrated computational material engineering was used to design, fabricate and characterize an Al-1.5Cu-0.8Sc-0.4Zr (wt%) alloy for laser powder bed fusion additive manufacturing (AM). Finalization of composition and prediction of solidification behavior and mechanical properties were done using calculation of phase diagrams (CALPHAD) and analytical tools. The microstructure of the printed alloy in as-built condition consisted of crack-free regions with fine-equiaxed grains which was consistent with CALPHAD results. Yield strength (YS) of similar to 349 +/- 8 MPa was also in more than 90% agreement with predicted YS. The findings demonstrate an efficient methodology for application-based alloy design for AM.

引用

页数：6

共 34 条

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