Improvement in the oxidation resistance of Nb-Si based alloy by selective laser melting

被引：61

作者：

Guo, Yueling ^{[1
]}

Jia, Lina ^{[1
]}

Kong, Bin ^{[1
]}

Zhang, Fengxiang ^{[1
]}

Liu, Jinhui ^{[2
]}

Zhang, Hu ^{[1
]}

机构：

[1] Beihang Univ, Sch Mat Sci & Engn, Beijing 100191, Peoples R China

[2] Heilongjiang Inst Sci & Technol, Modern Mfg Engn Ctr, Harbin 150027, Heilongjiang, Peoples R China

来源：

CORROSION SCIENCE | 2017年 / 127卷

关键词：

Nb-Si alloy; Intermetallics; Selective laser melting; Rapid solidification; Oxidation; HIGH-TEMPERATURE OXIDATION; DEGREES-C; COMPOSITES; MECHANISM; TI; BEHAVIOR; MICROSTRUCTURE; ADHESION; CORROSION; METALS;

D O I：

10.1016/j.corsci.2017.08.022

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Nb-18Si-24Ti-2Cr-2Al-2Hf (at.%) alloy was fabricated by selective laser melting (SLM). Results showed that an ultra-fined microstructure was achieved by SLM. After oxidation at 1250 degrees C for 50 h, the weight gains of Nb-Si based alloys via SLM and vacuum induction melting (VIM) were 96.48 mg/cm(2) and 198.91 mg/cm(2), respectively. Compared with the VIM alloy, the SLM alloy exhibited a slower oxidation kinetic rate, featured by the formation of a more compact oxide scale without spallation. The improvement in the oxidation resistance was attributed to the microstructure refinement.

引用

页码：260 / 269

页数：10

共 42 条

[1] Nanocrystalline TiC-reinforced H13 steel matrix nanocomposites fabricated by selective laser melting [J].

AlMangour, Bandar ;

Grzesiak, Dariusz ;

Yang, Jenn-Ming .

MATERIALS & DESIGN, 2016, 96 :150-161

[2] A review of very-high-temperature Nb-silicide-based composites [J].

Bewlay, BP ;

Jackson, MR ;

Zhao, JC ;

Subramanian, PR .

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2003, 34A (10) :2043-2052

[3] Cyclic-oxidation resistance of niobium-base in situ composites:: Modeling and experimentation [J].

Chan, KS .

OXIDATION OF METALS, 2004, 61 (3-4) :165-194

[4] Cyclic oxidation response of multiphase niobium-based alloys [J].

Chan, KS .

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2004, 35A (02) :589-597

[5] High temperature oxidation of NiCrAlY, nanocrystalline and enamel-metal nano-composite coatings under thermal shock [J].

Chen, Minghui ;

Zhu, Shenglong ;

Wang, Fuhui .

CORROSION SCIENCE, 2015, 100 :556-565

[6] Laser additive manufacturing of metallic components: materials, processes and mechanisms [J].

Gu, D. D. ;

Meiners, W. ;

Wissenbach, K. ;

Poprawe, R. .

INTERNATIONAL MATERIALS REVIEWS, 2012, 57 (03) :133-164

[7] Study of the fracture mechanism of Nbss/Nb5Si3 in situ composite: Based on a mechanical characterization of interfacial strength [J].

Guan, Kai ;

Jia, Lina ;

Kong, Bin ;

Yuan, Sainan ;

Zhang, Hu .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2016, 663 :98-107

[8] Microstructure evolution and room temperature fracture toughness of an integrally directionally solidified Nb-Ti-Si based ultrahigh temperature alloy [J].

Guo, Haisheng ;

Guo, Xiping .

SCRIPTA MATERIALIA, 2011, 64 (07) :637-640

[9] Rapid fabrication of Nb-Si based alloy by selective laser melting: Microstructure, hardness and initial oxidation behavior [J].

Guo, Yueling ;

Jia, Lina ;

Sun, Shaobo ;

Kong, Bin ;

Liu, Jinhui ;

Zhang, Hu .

MATERIALS & DESIGN, 2016, 109 :37-46

[10]

Hancock P., 1974, ADV CORROS SCI TECH, P1

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