%0 Journal Article
%T 超细钨铜复合粉末注射成型药型罩研发及测试
%A 吴焕龙
%A 彭科普
%A 向旭
%A 王威
%A 宋久鹏
%J 材料科学与工业
%D 2017
%R 10.11951/j.issn.1005-0299.20160309
%X W-Cu合金结合了钨的高密度与铜的高动态延伸率，是一种前景广阔的药型罩材料.为获得性能优良的金属射流，提高油气井射孔弹的穿孔指标，对高致密均质W-Cu合金药型罩进行了研发.采用热化学工艺开发了不同含铜率(质量分数为10%，15%，20%，25%)的亚微米级超细W-Cu复合粉末，选W-25Cu型复合粉末并采用注射近净成型工艺技术制备了药型罩，将脱脂件在H2气氛中烧结，峰值温度为1 200 ℃.采用SEM观察发现，烧结药型罩微观结构为亚微米级的W粒子均匀地分布在Cu基体中，其实测密度高达14.75 g/cm3.拉伸试验表明，所开发的药型罩材料具有优良的力学性能，极限抗拉强度达到822.4 MPa，屈服强度达807.5 MPa，延伸率为1.18%.破甲性能测试实验证明，该类药型罩具有极其稳定的侵彻性能.</br>Tungsten-copper (W-Cu) is an attractive material for shaped charge liner due to the combination of the high density of W and the good plasticity of Cu. In order to improve penetration indexes of perforating charges by obtain metal jet with excellent performance, the W-Cu liner with high degree homogeneity and relative density was developed.A series of submicron W-Cu composite powder with different Cu content from 10%~25% has been developed by thermo-chemical process. With the utilization of metal injection moulding(MIM), a type of near net-shaping shaped charge liner in W-25Cu has been prepared.The debinded parts were then sintered in Hydrogen atmosphere at the peak temperature of 1 200 ℃.After being sintered, the measured density of W-25Cu liner reached 14.75 g/cm3.Tensile test indicated that the developed liner possessed excellent material mechanical properties, ultimate tensile strength 822.4 MPa, Yield strength 807.5 MPa, Elongation 1.18%.The resulted material observed by SEM has a microstructure with the submicron W particles distributing homogeneously in the Cu matrix.The ballistic test showed the shaped charge W-25Cu liner by metal injection moulding of ultrafine composite powder with a high stable performance to penetrating into concrete target.
%K W-Cu药型罩
%K 超细复合粉末
%K 注射成型
%K 组织和性能
%K 混凝土侵彻&lt
%K /br&gt
%K W-Cu
%K shaped
%K charge
%K liner
%K ultrafine
%K composite
%K powder
%K metal
%K injection
%K moulding
%K microstructures
%K and
%K properties
%K concrete
%K penetration
%U http://hit.alljournals.cn/mst_cn/ch/reader/view_abstract.aspx?file_no=20170414&flag=1