TC11钛合金表面微弧沉积碳化钨涂层及耐烧蚀性能研究.pdfVIP

HotWorkingTechnology2020,Vol.49,No.16

TC11钛合金表面微弧沉积碳化钨涂层

及耐烧蚀性能研究

姚世睿，陈永才

(陆军工程大学石家庄校区火炮工程系，河北石家庄050003)

摘要：考虑到钛合金导热系数较小，在不同温度下以WC为沉积材料，采用微弧沉积技术在TC11钛合金表面制

备耐烧蚀涂层。分析了涂层的SEM微观形貌、显微硬度，利用摩擦磨损仪测试了涂层的磨损率;以某型大口径火炮实验平台

模拟了发射状态下身管内膛工况条件，检测了涂层的耐烧蚀性能。结果表明：在200°C下将钛合金圆片预热2h且沉积涂层

后保温2h条件下所制备的涂层外观形貌无裂纹，且涂层均匀致密、硬度髙，耐烧蚀性能明显优于传统的炮钢材料。

关键词：TC11;微弧沉积；碳化钨涂层；耐烧蚀

DOI:10.14158/j.cnki.1001-3814.

中图分类号：TG178文献标识码：A文章编号：1001-3814(2020)16-0118-03

StudyonMicroarcCladdingWCCoatingonTC11TitaniumAlloySuface

andItsAblationResistance

YAOShirui,CHENYongcai

(ArtilleryEngineeringDepartment,ShijiazhuangCampusofArmyEngineeringUniversity,Shijiazhuang050003,China)

Abstract：Takingintoaountthepoorthermalconductivityoftitaniumalloy,takingWCasthedepositionmaterialat

differenttemperatures,theablativecoatingonTC11Tialloyingsurfacewaspreparedbymicro-arcdepositiontechnology.

SEMmicrographsandmicrohardnessofthecoatingswereanalyzed.Thewearrateofthecoatingwastestedusingtribometer.

Acertainlarge-calibergunwasusedastheexperimentalplatformtosimulatetheconditionoftheboreofthebarrelunderthe

launchingconditionandtheablationresistanceofthecoatingwasdetected.Theresultsshowthattheappearancemorphology

ofthecoatingpreparedbypreheatingthetitaniumalloywaferpreheatingat200°Cfor2handholdingthecoatingfor2hhas

nocrackandthenthecoatingisuniformanddense,andthehardnessishigh.Theablationresis