Microstructure, mechanical properties and multiphase synergistic strengthening mechanisms of a novel laser additive manufactured AlNi6TiZr alloy

被引：10

作者：

Bi, Jiang ^{[1
]}

Wu, Liukun ^{[1
]}

Liu, Zeqi ^{[1
]}

Wang, Haixiang ^{[1
]}

Li, Shide ^{[2
]}

Wang, Ji ^{[2
]}

Yang, Zhuoyun ^{[1
]}

Lu, Nannan ^{[3
]}

Chen, Xi ^{[4
]}

Starostenkov, Mikhail Dmitrievich ^{[5
]}

Dong, Guojiang ^{[1
]}

机构：

[1] Yanshan Univ, Key Lab Adv Forging & Stamping Technol & Sci, Minist Educ, Qinhuangdao 066004, Peoples R China

[2] CIT Dicastal Co Ltd, Qinhuangdao 066004, Peoples R China

[3] Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China

[4] Harbin Inst Technol, Natl Key Lab Precis Hot Proc Met, Harbin 150001, Peoples R China

[5] Altai State Tech Univ, Gen Phys Dept, Leninist 46, Barnaul 656099, Russia

来源：

JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY | 2024年 / 178卷

关键词：

Selective laser melting; Al6NiTiZr alloy; Microstructure; Mechanical properties; Thermal stability; Strengthening mechanism; ALSI10MG ALLOY; STABILITY; FUSION; CRACK; SC;

D O I：

10.1016/j.jmst.2023.08.033

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this work, selective laser melting (SLM) process is used to prepare the AlNi6TiZr alloy. By analyzing the printing quality and mechanical properties of the printed specimens with different process parameters, the SLM forming window of AlNi6TiZr is obtained. The relative density of the sample printed with 270 W-1100 mm/s (laser energy density: 82 J/mm3) reaches 99.7%, exhibiting excellent mechanical properties (yield strength (YS): 421.7 MPa; ultimate tensile strength (UTS): 480.4 MPa). After an aging treatment of 325 degrees C-12 h, the YS and UTS of the sample increased to 494 MPa and 550.7 MPa, respectively. Adding Ni, Ti, and Zr components promoted the generation of multi-phase precipitates in the Al alloy and improved the synergistic strengthening effect of multi-phases. The hard-shell structure (HSS) formed by the Al3Ni phase at the grain boundary significantly strengthened the grain boundary strength. The precipitated Al3(Ti, Zr) phases at the grain boundaries prevent grain growth and dislocation movement. The Al3Ni and Al3(Ti, Zr) phases have good thermal stability that can still maintain excellent enhancement effects at high temperature. AlNi6TiZr alloy has great application prospects in medium and high-temperature environments.(c) 2023 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.

引用

页码：59 / 69

页数：11

共 82 条

[1] Laser-aided additive manufacturing of high entropy alloys: Processes, properties, and emerging applications [J].

Arif, Zia Ullah ;

Khalid, Muhammad Yasir ;

Rehman, Ehtsham Ur .

JOURNAL OF MANUFACTURING PROCESSES, 2022, 78 :131-171

[2] Microstructure, tensile properties and thermal stability of AlMgSiScZr alloy printed by laser powder bed fusion [J].

Bi, Jiang ;

Lei, Zhenglong ;

Chen, Yanbin ;

Chen, Xi ;

Tian, Ze ;

Lu, Nannan ;

Qin, Xikun ;

Liang, Jingwei .

JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY, 2021, 69 :200-211

[3] Parametrically designed surface topography on CAD models of additively manufactured lattice structures for improved design validation [J].

Chahid, Younes ;

Racasan, Radu ;

Pagani, Luca ;

Townsend, Andrew ;

Liu, Alexander ;

Bills, Paul ;

Blunt, Liam .

ADDITIVE MANUFACTURING, 2021, 37

[4] Microstructure, Mechanical Properties, and Fatigue Fracture Characteristics of High-Fracture-Resistance Selective Laser Melting Al-Ni-Cu Alloys [J].

Chang, Kai-Chieh ;

Zhao, Jun-Ren ;

Hung, Fei-Yi .

METALS, 2021, 11 (01) :1-13

[5] Perspectives for multiphase mechanical metamaterials [J].

Chen, Yuan ;

Mai, Yiu-Wing ;

Ye, Lin .

MATERIALS SCIENCE & ENGINEERING R-REPORTS, 2023, 153

[6] Plasma electrolytic oxidation of as-cast and heat-treated binary Al-Ni alloys [J].

Cosan, K. A. ;

Gunduz, K. O. ;

Tarakci, M. ;

Gencer, Y. .

SURFACE & COATINGS TECHNOLOGY, 2022, 450

[7] Additive manufacturing of metallic components - Process, structure and properties [J].

DebRoy, T. ;

Wei, H. L. ;

Zuback, J. S. ;

Mukherjee, T. ;

Elmer, J. W. ;

Milewski, J. O. ;

Beese, A. M. ;

Wilson-Heid, A. ;

De, A. ;

Zhang, W. .

PROGRESS IN MATERIALS SCIENCE, 2018, 92 :112-224

[8] A high-strength heat-resistant Al-5.7Ni eutectic alloy with spherical Al3Ni nano-particles by selective laser melting [J].

Deng, Junwang ;

Chen, Chao ;

Liu, Xiaochun ;

Li, Yunping ;

Zhou, Kechao ;

Guo, Shengmin .

SCRIPTA MATERIALIA, 2021, 203

[9] Enhanced mechanical properties and thermal stability in additively manufactured Al-Ni alloy by Sc addition [J].

Ding, Rou ;

Deng, Junwang ;

Liu, Xiaochun ;

Wu, Yiyou ;

Geng, Zhaowen ;

Li, Dan ;

Zhang, Taomei ;

Chen, Chao ;

Zhou, Kechao .

JOURNAL OF ALLOYS AND COMPOUNDS, 2023, 934

[10] Addition of Sc in wire-based directed energy deposition of Al-Mg-Zn-Cu alloy: Microalloying to refine grains and improve mechanical properties [J].

Dong, Bolun ;

Xia, Yunhao ;

Cai, Xiaoyu ;

Lin, Sanbao ;

Fan, Chenglei .

ADDITIVE MANUFACTURING, 2023, 67

← 1 2 3 4 5 6 7 8 9 →