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发布时间：2019-03-11

论文类型：期刊论文

发表时间：2018-01-01

发表刊物：HIGH PRESSURE RESEARCH

收录刊物：EI、SCIE

卷号：38

期号：1

页面范围：41-52

ISSN号：0895-7959

关键字：Tungsten-copper composite; underwater explosive compaction-sintering; bonding strength; copper matrix composite

摘要：This study investigated underwater explosive compaction-sintering for coating a high-density tungsten-copper composite on a copper surface. First, 50% W-50% Cu tungsten-copper composite powder was prepared by mechanical alloying. The composite powder was pre-compacted and sintered by hydrogen. Underwater explosive compaction was carried out. Finally, a high-density tungsten-copper coating was obtained by diffusion sintering of the specimen after explosive compaction. A simulation of the underwater explosive compaction process showed that the peak value of the pressure in the coating was between 3.0 and 4.8 GPa. The hardness values of the tungsten-copper layer and the copper substrate were in the range of 87-133 and 49 HV, respectively. The bonding strength between the coating and the substrate was approximately 100-105 MPa.