La2O3-reinforced W and W-V alloys produced by hot isostatic pressing
La2O3-reinforced W and W-V alloys produced by hot isostatic pressing
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DOI：
10.1016/j.jnucmat.2011.01.077
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发表时间：
2011-10-01
影响因子：
3.1
通讯作者：
Pareja, R.
中科院分区：
文献类型：
--
作者：
Munoz, A.;Monge, M. A.;Pareja, R.
采用机械合金化（MA）和热等静压（HIP）工艺，在1573 K和195 MPa下制备了La_2O_3颗粒增强的W和W-V合金。采用扫描电镜、能谱分析和X射线衍射等手段对合金的微观组织进行了表征。力学性能进行了研究，通过纳米压痕测量。结果表明，采用该工艺可以获得致密的W-V、W-V-La_2 O_3和W-La_2 O_3合金坯料。显微组织分析表明，在W-V和W-V-1 La（2）O（3）合金中存在V岛。在W-1 La（2）O（3）中也存在La 2 O3岛。V的加入提高了W基体的纳米硬度，而La 2 O3的加入降低了W基体的纳米硬度。(C)2011 Elsevier B. V.保留所有权利。
W and W-V alloys reinforced with La2O3 particles have been produced by MA and subsequent HIP at 1573 K and 195 MPa. The microstructure of the consolidated alloys has been characterized by scanning electron microscopy, energy dispersive spectroscopy analyses and X-ray diffraction. The mechanical properties were studied by nanoindentation measurements. The results show that practically full dense billets of W-V, W-V-La2O3 and W-La2O3 alloys can be produced. The microstructure analysis has shown that islands of V are present in W-V and W-V-1La(2)O(3) alloys. In W-1La(2)O(3) islands of La2O3 are also present. The nanohardness of the W matrix increases with the addition of V. while decreases with the addition of La2O3. (C) 2011 Elsevier B.V. All rights reserved.