Properties of maraging steel hardfacing metal deposited by metal powder-cored wire - 文章详情页

作者：

Fang, Jian-Jun (Fang, Jian-Jun.) | Li, Zhuo-Xin (Li, Zhuo-Xin.) | Wei, Qi (Wei, Qi.) | Hu, Qiang (Hu, Qiang.)

收录：

EI Scopus PKU CSCD

摘要：

Hardfacing　material　of　maraging　steel　metal　powder-cored　wire　was　deposited　by　pulse　TIG　on　aluminum　die　cast　dies　to　improve　the　dies＇　properties　and　extend　its　service　life.　Micro-structure　and　phase　characteristics　were　analyzed　by　using　SEM,　TEM　and　XRD.　After　aging,　the　metal　got　super-high　strength,　hardness　and　thermal　fatigue　resistance　by　intermetallic　compound　[Ni3Ti,　Ni3(Al,　Ti)]　precipitating　in　Fe　matrix.　Metastable　phases　such　as　(Ni2.9Fe0.1)Ti　and　(Ni0.7Fe0.3)　were　found.　Thermal　fatigue　experimental　results　showed　that　maraging　steel　deposited　by　metal-cored　wire　has　higher　thermal　fatigue　resistance　properties　than　that　of　H13　solid　wire　and　18Ni　maraging　steel.

关键词：

Aluminum alloys Dies Hard facing Inert gas welding Intermetallics Maraging steel Mechanical properties Morphology Scanning electron microscopy Surface properties Transmission electron microscopy Wire X ray diffraction analysis

作者机构：

[ 1 ] [Fang, Jian-Jun]School of Mechanics and Electrical Engineering, Beijing University of Technology, Beijing 100022, China
[ 2 ] [Li, Zhuo-Xin]School of Mechanics and Electrical Engineering, Beijing University of Technology, Beijing 100022, China
[ 3 ] [Wei, Qi]School of Mechanics and Electrical Engineering, Beijing University of Technology, Beijing 100022, China
[ 4 ] [Hu, Qiang]School of Mechanics and Electrical Engineering, Beijing University of Technology, Beijing 100022, China

通讯作者信息：

电子邮件地址：

fangjiany@emails.bjut.edu.cn

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