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Ｗ－Ｎｉ－Ｆｅ合金中添加镧的作用Ｗ－Ｎｉ－Ｆｅ合金中添加镧可降低该合金中磷的界面偏析及其对脆性的影响。朝鲜高科技学院材料科学工程系的这项研究表明，在烧结Ｗ－４．９Ｎｉ－２．１ｗｔ％Ｆｅ合金中添加镧，主要是因为镧可能形成一种稳定的化合物ＬａＰＯ＿４，而...
Addition of lanthanum to W-Ni-Fe alloy Adding lanthanum to W-Ni-Fe alloy can reduce the interfacial segregation of phosphorus in the alloy and its effect on the brittleness. This study by the Department of Materials Science and Engineering, Northwestern Polytechnical Institute shows that the addition of lanthanum to the sintered W-4.9Ni-2.1wt% Fe alloy is mainly due to the fact that lanthanum may form a stable compound LaPO_4 and ...