Erosion Resistance and Particle Erosion-Induced Tensile Embrittlement of 3D-Selective Laser Melting Inconel 718 Superalloy

被引：13

作者：

Zhao, Jun-Ren ^{[1
]}

Hung, Fei-Yi ^{[1
]}

Lui, Truan-Sheng ^{[1
]}

机构：

[1] Natl Cheng Kung Univ, Dept Mat Sci & Engn, Tainan 70101, Taiwan

来源：

METALS | 2020年 / 10卷 / 01期

关键词：

Inconel; 718; selective laser melting (SLM); erosion; phase transformation; tensile; embrittlement; MICROSTRUCTURE; DEPOSITION; COATINGS; BEHAVIOR; ALLOY; PHASE;

D O I：

10.3390/met10010021

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We used selective laser melting (SLM) Inconel 718 (coded AS) to carry out three heat treatment processes: (1) double aging (coded A), (2) solid solution + A (coded SA), (3) homogenization + SA (coded HSA) in order to investigate the effects of microstructure changes and tensile strength enhancement on erosion resistance. The as-SLM IN718 and three heat-treated specimens were subjected to clarify the effects of erosion-induced phase transformation on tensile mechanical properties. All heat-treated specimens showed better erosion resistance than as-SLM IN718 did at all impact angles. The as-SLM IN718 and the three heat-treated specimens produced new gamma ' phase or metal-oxide via particle erosion, which increased the surface hardness of the material. The thickness of the erosion affected zone is 200 mu m, which is the main cause of tensile embrittlement.

引用

页数：13

共 29 条

[1]

Bircan B., 2014, Jamme, V66, P5

[2] Microstructural characteristics of forged and heat treated Inconel-718 disks [J].

Chamanfar, A. ;

Sarrat, L. ;

Jahazi, M. ;

Asadi, M. ;

Weck, A. ;

Koul, A. K. .

MATERIALS & DESIGN, 2013, 52 :791-800

[3] Effect of heat treatment on the microstructure and mechanical properties of Inconel 718 processed by selective laser melting [J].

Chlebus, E. ;

Gruber, K. ;

Kuznicka, B. ;

Kurzac, J. ;

Kurzynowski, T. .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2015, 639 :647-655

[4] A study on SiO2 particle erosion of flake graphite and spheroidal graphite cast irons [J].

Dai, WS ;

Chen, LH ;

Lui, TS .

WEAR, 2000, 239 (01) :143-152

[5] SOME OBSERVATIONS ON EROSION OF DUCTILE METALS [J].

FINNIE, I .

WEAR, 1972, 19 (01) :81-&

[6] Laser metal deposition of TiC/Inconel 718 composites with tailored interfacial microstructures [J].

Hong, Chen ;

Gu, Dongdong ;

Dai, Donghua ;

Gasser, Andres ;

Weisheit, Andreas ;

Kelbassa, Ingomar ;

Zhong, Minlin ;

Poprawe, Reinhart .

OPTICS AND LASER TECHNOLOGY, 2013, 54 :98-109

[7] Phase transformation of an austempered ductile iron during an erosion process [J].

Hung, FY ;

Chen, LH ;

Lui, TS .

MATERIALS TRANSACTIONS, 2004, 45 (10) :2981-2986

[8]

Kistler N.A., 2015, THESIS

[9] Aging effects on the microstructure and creep behavior of Inconel 718 superalloy [J].

Kuo, C. -M. ;

Yang, Y. -T. ;

Bor, H. -Y. ;

Wei, C. -N. ;

Tai, C. -C. .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2009, 510-11 :289-294

[10]

LEWANDOWSKI MS, 1994, SUPERALLOYS 718, 625, 706 AND VARIOUS DERIVATIVES, P345

← 1 2 3 →