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据《先进材料和工艺》(2015年第173卷第2期)报道,美国麻省理工学院研究人员已经研制出一种可替代贫铀穿甲弹芯材料的新型钨合金。新合金为具有Cr-Fe黏结相的W-7Cr-9Fe合金,其强度显著高于工业钨合金。采用金属粉末在场助烧结热压机上压实,然后在1 200℃下处理1 min得到最佳性能。目前研究人员已经获得了130 nm的超细晶组织的W-7Cr-9Fe压实件。使用该粉末
According to “Advanced Materials and Processes” (Vol. 173, No. 2, 2015), researchers at the Massachusetts Institute of Technology have developed a new type of tungsten alloy that can replace depleted uranium penetrators. The new alloy is a W-7Cr-9Fe alloy with a Cr-Fe binder phase, which is significantly higher in strength than industrial tungsten alloys. The best performance was achieved by compacting the metal powder on a sintering aiding press and then treating it at 1 200 ° C for 1 min. Researchers have now obtained 130 nm ultrafine-grained W-7Cr-9Fe compacts. Use this powder