Fabrication of FeNi intermetallic using the wire-arc additive manufacturing process: A feasibility and neutron diffraction phase characterization study

被引：18

作者：

Shen, Chen ^{[1
,2
]}

Liss, Klaus-Dieter ^{[2
,3
,4
,5
]}

Reid, Mark ^{[3
]}

Pan, Zengxi ^{[2
]}

Hua, Xueming ^{[1
]}

Li, Fang ^{[1
]}

Mou, Gang ^{[1
]}

Huang, Ye ^{[1
]}

Zhu, Yanyan ^{[1
]}

Li, Huijun ^{[2
]}

机构：

[1] Shanghai Jiao Tong Univ, Sch Mat Sci & Engn, Shanghai Key Lab Mat Laser Proc & Modificat, Shanghai 200240, Peoples R China

[2] Univ Wollongong, Fac Engn & Informat Sci, Sch Mech Mat & Mechatron Engn, Wollongong, NSW 2522, Australia

[3] Australian Nucl Sci & Technol Org, Australian Ctr Neutron Scattering, Lucas Heights, NSW 2234, Australia

[4] Guangdong Technion Israel Inst Technol, Mat & Engn Sci Program, Shantou 515063, Guangdong, Peoples R China

[5] Technion Israel Inst Technol, IL-32000 Haifa, Israel

来源：

JOURNAL OF MANUFACTURING PROCESSES | 2020年 / 57卷

基金：

中国国家自然科学基金;

关键词：

Intermetallic; Additive manufacturing; Neutron diffraction; POWDER DIFFRACTOMETER; IRON ALUMINIDE; SITU; TETRATAENITE; NI; TEMPERATURE; ALLOY; TRANSFORMATION; LATTICE;

D O I：

10.1016/j.jmapro.2020.07.027

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

FeNi intermetallic has been continuously attractive due to the appreciable magneto-crystalline anisotropy and high saturation magnetization in the nominally-equiatomic chemically ordered L1(0) structure. In the present research, the bulk FeNi alloy is successfully fabricated using an innovative wire-arca additive manufacturing process, which is also an in-situ alloying method. In the meantime, to characterize the thermal lattice evolution of the FeNi, neutron diffraction is conducted to the as-fabricated sample in-situ during a heat treatment process. According to the neutron results, an anisotropic fcc-FeNi lattice evolution has been detected, which indicates the existence of FeNi superstructure in the WAAM fabricated FeNi bulk material. In addition, due to the featured advantage of the neutron data, the fcc-FeNi volumetric lattice thermal expansion coefficients during heating and cooling processes are calculated.

引用

页码：691 / 699

页数：9

共 40 条

[1] TETRAGONAL LATTICE OF TETRATAENITE (ORDERED FE-NI, 50-50) FROM 4 METEORITES [J].