Study on Low-Temperature Sintering Behavior of 90W-7Ni-3Fe Alloys: The Influence of Sn Addition
Study on Low-Temperature Sintering Behavior of 90W-7Ni-3Fe Alloys: The Influence of Sn Addition
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90W-7Ni-3Fe合金低温烧结行为研究:Sn添加的影响
DOI:
10.1007/s11665-020-05055-7
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发表时间:
2020-09
影响因子:
2.3
通讯作者:
Zhongliu Wen
中科院分区:
文献类型:
--
作者:
Wentan Zhu;Yunzhu Ma;Wensheng Liu;Qingshan Cai;Yufeng Huang;Zhongliu Wen
In this work, we investigate low-temperature sintering behavior of the 90W-7Ni-3Fe alloy by introducing Sn. The 90W-7Ni-3Fe alloy with different Sn contents (0, 0.5, 1.0 and 1.5 wt.%) was fabricated via vacuum sintering at 1300 °C for 90 min. When 1 wt.% Sn was added, the liquidus temperature of the 90W-7Ni-3Fe alloy decreased from 1477 to 1265 °C, resulting in rapid densification (relative density increased from 77.77 to 98.59%) and an homogeneous liquid-phase sintered microstructure. Electron probe microanalysis (EPMA) and transmission electron microscopy (TEM) observations revealed that, apart from W and theγ-(Ni, Fe) phase, a new Ni3Sn2phase appeared in the matrix phase. Furthermore, we discuss in detail the formation of the Ni3Sn2phase based on element selection theory, which can be associated with the larger atomic radius of Sn and with the negative enthalpy of mixing Sn and Ni. Excessive Sn content (1.5 wt.%) led to the increase in Ni3Sn2phase, and this deteriorated the relative density and tensile strength of the alloy. The 90W-7Ni-3Fe alloy with the addition of 1 wt.% Sn exhibited a maximum tensile strength value (710 MPa), which was much higher than that of the 90W-7Ni-3Fe alloy that was obtained at 1300 °C. Our findings shed light on further research directions and developed a 90W-6.3Ni-2.1Fe-1Sn alloy for low-temperature sintering.
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影响因子:
2.1
作者:
Tzu-Ting Huang;Shih-Wei Lin;Chih-Ming Chen;P. Chen;Y. Yen
通讯作者:
Tzu-Ting Huang;Shih-Wei Lin;Chih-Ming Chen;P. Chen;Y. Yen
DOI:
10.1016/s1003-6326(11)60742-5
发表时间:
2011-03-01
影响因子:
4.5
作者:
Hu Ke;Li Xiao-qiang;Li Yuan-yuan
通讯作者:
Li Yuan-yuan
DOI:
10.1201/b15869-5
发表时间:
1985
期刊:
--
影响因子:
--
作者:
R. German
通讯作者:
R. German
影响因子:
3.6
作者:
Zongqing Ma;Hai Jiang;Yong-chang Liu
通讯作者:
Zongqing Ma;Hai Jiang;Yong-chang Liu
影响因子:
2.3
作者:
Wentan Zhu;Wensheng Liu;Qingshan Cai;Ma Yunzhu;Pang Xinkuan;Chaoping Liang
通讯作者:
Chaoping Liang