Properties of maraging steel hardfacing metal deposited by metal powder-cored wire - Details

Author：

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

Indexed by：

EI Scopus PKU CSCD

Abstract：

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.

Keyword：

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

Author Community：

[ 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