Developing a practice for the heat treatment of laser-powder bed fused Ti-6Al-2Sn-4Zr-2Mo-0.08Si alloy

被引：2

作者：

Kaushik, Harish Chandra ^{[1
]}

Korayem, Mahdi Habibnejad ^{[2
]}

Hadadzadeh, Amir ^{[1
]}

机构：

[1] Univ Memphis, Dept Mech Engn, Memphis, TN 38152 USA

[2] GE Addit Co, AP & C Adv Powder & Coating, Montreal, PQ, Canada

来源：

VACUUM | 2023年 / 217卷

关键词：

Laser-powder bed fusion; Titanium alloys; Heat treatment; Strength; Ductility; TITANIUM-ALLOYS;

D O I：

10.1016/j.vacuum.2023.112554

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The laser-powder bed fusion (L-PBF) technique is employed to print cylindrical rods of near-alpha Ti-6Al-2Sn-4Zr-2Mo-0.08Si (Ti6242) alloy. The parts are printed using four scan speeds; 1000, 1200, 1400, and 1600 mm/s. Since the 1200 mm/s sample possesses the highest strength in the as-built condition, it is selected as the benchmark sample for heat treatment development. The kinetics of alpha to B phase transformation is employed in designing a two-step subtransus heat treatment recipe. The mechanical properties and microstructure of both as-built and heat-treated parts are studied to elaborate on the process-microstructure-properties relationship and the effectiveness of the heat treatment recipe. In the next step, this recipe is applied to the other samples. The formulated heat treatment works effectively for all conditions and makes the final properties more uniform. This study shows the effectiveness of developing a heat treatment for one printing condition and extending it to other printing conditions.

引用

页数：5

共 27 条

[1]

[Anonymous], 2017, Designation: B311-17

[2]

Chandler H.E., 1996, HEAT TREATERS GUIDE

[3] Micromechanical behavior and thermal stability of a dual-phase α plus α′ titanium alloy produced by additive manufacturing [J].

de Formanoir, Charlotte ;

Martin, Guilhem ;

Prima, Frederic ;

Allain, Sebastien Y. P. ;

Dessolier, Thibaut ;

Sun, Fan ;

Vives, Solange ;

Hary, Benjamin ;

Brechet, Yves ;

Godet, Stephane .

ACTA MATERIALIA, 2019, 162 :149-162

[4] 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

[5] HIGH-TEMPERATURE TITANIUM-ALLOYS - A REVIEW [J].

EYLON, D ;

FUJISHIRO, S ;

POSTANS, PJ ;

FROES, FH .

JOURNAL OF METALS, 1984, 36 (11) :55-62

[6]

Fan H., J. Micromech. Molecul. Physics, V6, P2050018, DOI [10.1142/S2424913020500186, DOI 10.1142/S2424913020500186]

[7] Effects of direct aging on near-alpha Ti-6Al-2Sn-4Zr-2Mo (Ti-6242) titanium alloy fabricated by selective laser melting (SLM) [J].

Fan, Haiyang ;

Yang, Shoufeng .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2020, 788

[8] Modification of the Kolmogorov-Johnson-Mehl-Avrami rate equation for non-isothermal experiments and its analytical solution [J].

Farjas, J. ;

Roura, P. .

ACTA MATERIALIA, 2006, 54 (20) :5573-5579

[9] Evolution of the microstructure and mechanical properties of additively manufactured AlSi10Mg during room temperature holds and low temperature aging [J].

Fite, John ;

Prameela, Suhas Eswarappa ;

Slotwinski, John A. ;

Weihs, Timothy P. .

ADDITIVE MANUFACTURING, 2020, 36

[10] Formation and evolution of precipitates in an additively manufactured near- a titanium base alloy [J].

Fleissner-Rieger, Christian ;

Schoenmaier, Hannah ;

Musi, Michael ;

Stadler, Manfred ;

Gschiel, Harald ;

Turk, Christoph ;

Pfeifer, Tanja ;

Clemens, Helmut .

MATERIALIA, 2022, 21

← 1 2 3 →