Crack suppression via in-situ oxidation in additively manufactured W-Ta alloy
Crack suppression via in-situ oxidation in additively manufactured W-Ta alloy
复制标题
通过增材制造钨钽合金中的原位氧化抑制裂纹
DOI：
10.1016/j.matlet.2019.127212
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发表时间：
2020
影响因子：
3
通讯作者：
Xiaoxu Huang
中科院分区：
文献类型：
--
作者：
Kailun Li;G. Ma;Leilei Xing;Yafei Wang;Chenfan Yu;Jinhan Chen;Jing Ma;Guilin Wu;Wei Liu;Zhijian Shen;Xiaoxu Huang
在这项研究中，纯W和W-6 wt.%采用激光粉末床熔融（LPBF）技术制备了钽合金。比较了所制备的纯W和W-Ta试样的开裂行为和显微组织。与纯W相比，W-Ta合金中的裂纹数量和长度显着减少。W-Ta合金的晶粒得到细化，大量位错与Ta氧化物纳米颗粒缠结在一起。位错促进了塑性变形，而Ta清除了氧杂质，这有利于减少裂纹。
In this study, pure W and W-6 wt.%Ta alloy were manufactured by a laser powder bed fusion (LPBF) technique. The cracking behavior and microstructure in the manufactured pure W and W-Ta samples were compared. The number and length of the cracks in the W-Ta alloy were significantly reduced compared to the pure W. The grains of the W-Ta alloy were refined and a large number of dislocations tangled with Ta oxide nanoparticles. The dislocations facilitate the plastic deformation while Ta scavenges the oxygen impurities, which benefits the crack reduction.
影响因子：
64.8
作者：
Martin, John H.;Yahata, Brennan D.;Pollock, Tresa M.
通讯作者：
Pollock, Tresa M.