Tool steel and copper coatings by friction surfacing ?A thermography study

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• 作者：K.  ; Prasad Rao^a ;   ; ^{kpr@iitm.ac.in} ;   ; ^{jyothipr@gmail.com} ; A.  ; Veera Sreenu^a ; H.  ; Khalid Rafi^a ; M.N.  ; Libin^b ; Krishnan  ; Balasubramaniam^b
• 关键词：Infrared thermography ; Solid state coating ; Thermal profile ; Friction surfacing
• 刊名：Journal of Materials Processing Technology
• 出版年：2012
• 出版时间：February 2012
• 年：2012
• 卷：212
• 期：2
• 页码：402-407
• 全文大小：1583 K

文摘

Infrared thermography was used to record thermal profiles during friction surfacing. Thermal profiles for different sets of consumable rod/substrates (tool steel/steel; copper/steel and copper/copper) were recorded and analyzed. The thermal profiles showed distinct stages of plastic deformation with respect to temperature. The mechanism of bonding or no-bonding was discussed based on thermal profile data. It was found that a metallurgically bonded coating can be obtained if the flow stress of the plasticized material is comparable with the localized stress developed due to axial loading.