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Burn-resistant Coatings Lubricated on the Surface of Titanium Alloys
Pingze Zhang,Jun Huang,Hongyan Wu,Qiang Miao,Zhengjun Yao,Zhong Xu,Zhiyong He 한국물리학회 2008 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.52 No.-
Conventional titanium alloy may be ignited and burnt in conditions of high temperature, high air pressure, and high gas flow velocity. In the present study, burn-resistant coatings have been lubricated by using double glow plasma surface alloying technology. Alloying elements Cr, Mo, and Cu were induced into Ti6Al4V and Ti6.5Al0.3Mo1.5Zr0.25Si substrates through double glow discharged plasma processing, and Ti-Cr, Ti-Mo, and Ti-Cu burn-resistant alloy layers were formed on the surface of the Ti6Al4V and Ti6.5Al0.3Mo1.5Zr0.25Si alloys. The depth of the surface burn-resistant alloy layers could exceed 200 μm and the alloying-element component could reach 90%. Burn-resistant performance experimental results show that if the Cr component(wt%) is over 14%, the Cu component is over 12%, and the Mo component is over 10% in the alloying layers, ignition and burn of titanium alloy are effectively avoided. Conventional titanium alloy may be ignited and burnt in conditions of high temperature, high air pressure, and high gas flow velocity. In the present study, burn-resistant coatings have been lubricated by using double glow plasma surface alloying technology. Alloying elements Cr, Mo, and Cu were induced into Ti6Al4V and Ti6.5Al0.3Mo1.5Zr0.25Si substrates through double glow discharged plasma processing, and Ti-Cr, Ti-Mo, and Ti-Cu burn-resistant alloy layers were formed on the surface of the Ti6Al4V and Ti6.5Al0.3Mo1.5Zr0.25Si alloys. The depth of the surface burn-resistant alloy layers could exceed 200 μm and the alloying-element component could reach 90%. Burn-resistant performance experimental results show that if the Cr component(wt%) is over 14%, the Cu component is over 12%, and the Mo component is over 10% in the alloying layers, ignition and burn of titanium alloy are effectively avoided.