Microstructure and room temperature mechanical properties of Ni 3Si based alloy with titanium addition

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題名:	Microstructure and room temperature mechanical properties of Ni 3Si based alloy with titanium addition
作者:	鄭憲清;Wang, S K;Fu, C C;Cai, Z W;Jian, S R;Jang, J S C;Zhang, H Z;Hsu, H C
貢獻者:	工學院材料科學與工程研究所
關鍵詞:	Dimpling;Ductile fracture;Electron microscopy;Electron probe microanalysis;Environmental embattlement;Fracture surfaces;High temperature tensile test;Intermetallic alloy;Mechanical properties;Microscopy;Microstructure;Room temperature;Strain rate;Tensile tests;Titanium;Ultimate tensile strength
日期:	2012-02-01
上傳時間:	2026-04-23 11:39:47 (UTC+8)
出版者:	Maney Publishing;London: Taylor & Francis
摘要:	摘要： The microstructure and room temperature mechanical properties of Ni-15Si-2Nb-1Cr-3Ti-0·2B alloy were investigated by means of X-ray diffraction, scanning electron microscopy, electron probe microanalysis, transmission electron microscopy and tensile test in air and vacuum. The results of tensile testing revealed that the addition of Ti can significantly improve the elongation as well as ultimate tensile strength (18·3% and 1320 MPa in air and 21% and 1600 MPa in vacuum) in comparison with the Ni-18Si-3Nb-1Cr-0·2B base alloy (10% and 1130 MPa in air and 14% and 1240 MPa in vacuum) at room temperature. In addition, the fracture surface of the specimen after tensile test presents a typical transgranular ductile mode, with a fully dimpled fracture pattern. This indicates that the addition of Ti in the Ni-15Si-2Nb-1Cr-3Ti-0·2B alloy can effectively suppress the environmental embrittlement at room temperature. In addition, the Ni-15Si-2Nb-1Cr-3Ti-0·2B alloy exhibits insensitivity to strain rate in both air and vacuum at room temperature. 出版者： London: Taylor & Francis 出版日期： 2012-02-01 出處： Materials science and technology, 2012-02, Vol.27 (1), p.139-141 版權： 2012 W. S. Maney & Son Ltd. 2012 版權： (©) 2012 W. S. Maney & Son Ltd. 識別號： ISSN: 1066-7857 識別號： ISSN: 0267-0836 識別號： EISSN: 1753-5557 識別號： EISSN: 1743-2847 識別號： DOI: 10.1179/175355511X13240279341001 識別號： CODEN: MSCTEP
顯示於類別:	[材料科學與工程研究所 ] 期刊論文

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