Preheat effect on titanium plate fabricated by sputter-free selective laser melting in vacuum

被引：19

作者：

Sato, Yuji ^{[1
]}

Tsukamoto, Masahiro ^{[1
]}

Shobu, Takahisa ^{[2
]}

Yamashita, Yorihiro ^{[3
]}

Yamagata, Shuto ^{[4
]}

Nishi, Takaya ^{[5
]}

Higashino, Ritsuko ^{[1
]}

Ohkubo, Tomomasa ^{[6
]}

Nakano, Hitoshi ^{[5
]}

Abe, Nobuyuki ^{[1
]}

机构：

[1] Osaka Univ, Joining & Welding Res Inst, 11-1 Mihogaoka, Ibaraki, Osaka 5670047, Japan

[2] Japan Atom Energy Agcy, 1-1-1 Kouto, Sayou, Hyogo 6795148, Japan

[3] Ind Res Inst Ishikawa, 2-1 Kuratsuki, Kanazawa, Ishikawa 9208203, Japan

[4] Osaka Univ, Grad Sch Engn, 1-1 Yamadaoka, Suita, Osaka 5650871, Japan

[5] Kindai Univ, Grad Sch Sci & Engn, Higashiosaka, Osaka 5778502, Japan

[6] Tokyo Univ Technol, Dept Mech Engn, 1404-1 Katakura, Hachioji, Tokyo 1920914, Japan

来源：

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING | 2018年 / 124卷 / 04期

关键词：

MICROSTRUCTURE; MORPHOLOGY; POWDER;

D O I：

10.1007/s00339-018-1712-4

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The dynamics of titanium (Ti) melted by laser irradiation was investigated in a synchrotron radiation experiment. As an indicator of wettability, the contact angle between a selective laser melting (SLM) baseplate and the molten Ti was measured by synchrotron X-rays at 30 keV during laser irradiation. As the baseplate temperature increased, the contact angle decreased, down to 28 degrees at a baseplate temperature of 500 degrees C. Based on this result, the influence of wettability of a Ti plate fabricated by SLM in a vacuum was investigated. It was revealed that the improvement of wettability by preheating suppressed sputtering generation, and a surface having a small surface roughness was fabricated by SLM in a vacuum.

引用

页数：6

共 17 条

[1] Selective laser melting of titanium alloy: investigation of mechanical properties and microstructure [J].

Agapovichev, A. V. ;

Kokareva, V. V. ;

Smelov, V. G. ;

Sotov, A. V. .

INTERNATIONAL CONFERENCE AND YOUTH SCIENTIFIC SCHOOL ON MATERIALS AND TECHNOLOGIES OF NEW GENERATIONS IN MODERN MATERIALS SCIENCE, 2016, 156

[2] Rapid manufacturing of metal components by laser forming [J].

Costa Santos, Edson ;

Shiomi, Masanari ;

Osakada, Kozo ;

Laoui, Tahar .

INTERNATIONAL JOURNAL OF MACHINE TOOLS & MANUFACTURE, 2006, 46 (12-13) :1459-1468

[3] Surface tension of liquid metals and alloys - Recent developments [J].

Egry, I. ;

Ricci, E. ;

Novakovic, R. ;

Ozawa, S. .

ADVANCES IN COLLOID AND INTERFACE SCIENCE, 2010, 159 (02) :198-212

[4] Wetting by Liquid Metals-Application in Materials Processing: The Contribution of the Grenoble Group [J].

Eustathopoulos, Nicolas .

METALS, 2015, 5 (01) :350-370

[5] Preparation of TiN-Ti5Si3 in-situ composites by Selective Laser Melting [J].

Gu, Dongdong ;

Shen, Yifu ;

Lu, Zhijian .

MATERIALS LETTERS, 2009, 63 (18-19) :1577-1579

[6] Selective laser melting additive manufacturing of Inconel 718 superalloy parts: Densification, microstructure and properties [J].

Jia, Qingbo ;

Gu, Dongdong .

JOURNAL OF ALLOYS AND COMPOUNDS, 2014, 585 :713-721

[7] Denudation of metal powder layers in laser powder bed fusion processes [J].

Matthews, Manyalibo J. ;

Guss, Gabe ;

Khairallah, Saad A. ;

Rubenchik, Alexander M. ;

Depond, Philip J. ;

King, Wayne E. .

ACTA MATERIALIA, 2016, 114 :33-42

[8]

Merkt S., 2015, J LASER APPL, V27

[9]

Nakano S., 2014, GAS TURBINE SOC JPN, V42, P433

[10] Surface morphology of Ti-6Al-4V plate fabricated by vacuum selective laser melting [J].

Sato, Y. ;

Tsukamoto, M. ;

Yamashita, Y. .

APPLIED PHYSICS B-LASERS AND OPTICS, 2015, 119 (03) :545-549

← 1 2 →