Effect of W addition on the glass forming ability and mechanical properties of Fe-based metallic glass
Effect of W addition on the glass forming ability and mechanical properties of Fe-based metallic glass
复制标题
W添加对铁基金属玻璃玻璃形成能力和力学性能的影响
DOI：
10.1016/j.jallcom.2017.10.104
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发表时间：
2018-01-15
影响因子：
6.2
通讯作者：
Shen, Jun
中科院分区：
文献类型：
--
作者：
Liang, Dan-dan;Wei, Xian-shun;Shen, Jun
研究了难熔元素W的添加对Fe47-xCr20Mo10WxC15B6Y2 (x = 0, 2, 4, 6 at. %)合金玻璃形成能力(GFA)和力学性能的影响。当 x 增加到 4 at 时，Fe47-xCr20Mo10WxC15B6Y2 合金的过冷液体区域 Delta T-x (T-x-T-g) 和准则 gamma [T-x/(T-g + T-l)] 分别增加到 62 K 和 0.390。 %。用 W (4 at.%) 适当替代 Fe，可抑制 Fe23B6 相的形成，从而显着提高 GFA。当 x 增加到 6 at 时，GFA 和热稳定性下降。 %。直径为 8 毫米的 Fe43Cr20Mo10W4C15B6Y2 大块金属玻璃 (BMG) 棒可以使用商业纯度材料制造。添加难熔W元素还可以提高Fe47-xCr20Mo10WxC15B6Y2 BMG的显微硬度、抗压强度和塑性。 Fe41Cr20Mo10W6C15B6Y2 BMG 表现出 4.12 GPa 的高抗压强度和 1267 HV 的显微硬度。 (C) 2017 Elsevier B.V. 保留所有权利。
The effects of refractory element W addition on the glass forming ability (GFA) and mechanical properties of Fe47-xCr20Mo10WxC15B6Y2 (x = 0, 2, 4, 6 at. %) alloys were investigated. The supercooled liquid region Delta T-x (T-x-T-g) and criterion gamma [T-x/(T-g + T-l)] of Fe47-xCr20Mo10WxC15B6Y2 alloys increased to 62 K and 0.390, respectively, when x increased to 4 at. %. An appropriate substitution of Fe by W (4 at. %) significantly improved the GFA by suppressing the formation of the Fe23B6 phase. The GFA and thermal stability decreased when x increased to 6 at. %. The Fe43Cr20Mo10W4C15B6Y2 bulk metallic glass (BMG) rod with an 8 mm diameter could be fabricated by using commercial purity materials. The addition of the refractory W element could also enhance the microhardness, compressive strength and plasticity of Fe47-xCr20Mo10WxC15B6Y2 BMGs. The Fe41Cr20Mo10W6C15B6Y2 BMG exhibited high compressive strength of 4.12 GPa and microhardness of 1267 HV. (C) 2017 Elsevier B.V. All rights reserved.