第11期 祝军等：AC-HVAF喷涂铁基非晶复合涂层结晶度的DSC法测定 ,1127, ceeding of the International Thermal Spray Conference.Orlan- 金涂层的性能研究.材料工程，2005,16(9)：53 duo,2003:535 [10]周玉，范雄.材料分析方法.北京：机械工业出版社，1999： [9]潘继岗，樊自拴，孙冬柏，等.超音速火焰喷涂Fe基非晶合 183 DSC measurement of the crystallinity of iron -based amorphous alloy coatings by AC HV AF spraying ZHU Jun,FAN Zishuan,SUN Dongbai,YU Hongying,MENG Huimin,WANG Xudong Materials Science and Engineering School.University of Science and Technology Beijing.Beijing 100083.China ABSTRACI A high amorphous content Fe based amorphous coating was prepared by the activated combustion high velocity air fuel (AC HVAF)spraying method.According to the thermodynamic transformation theory of amorphous alloys,the crystallization of the fractional crystallized amorphous alloy is the transformation of residu- al amorphous phase,and its transformation enthalpy should be proportional to the phase content of residual amorphous phase.The coating was crystallized by different heat treatment methods.The nanocrystal content in the heated treating coatings and the fractional transformation enthalpy were measured by DSC analysis.The crystallization of the coating was detected.The experimental result basically matched with the data of theoretic forecasting. KEY WORDS amorphous alloy coatings;activated combustion high velocity air fuel spraying;crystallization: DSC analysis (下期预告) X70管线钢热变形奥氏体的静态再结晶行为 陈庆军康永林孙浩于浩 通过双道次压缩实验，在Gleeble 1500热模拟实验机上研究了X70管线钢在不同变形工艺下奥氏体的 软化行为，分析了不同变形温度、间隔时间、应变速率、变形量及初始奥氏体晶粒尺寸等参数对静态再结晶行 为的影响规律，采用应力补偿法计算了不同变形条件下的静态再结晶分数，根据实验数据，计算出X70管线 钢静态再结晶激活能为435.3 kJ.mol,建立了其静态再结晶动力学模型，为制定合理的轧制工艺提供了 基础，ceeding of the International Thermal Spray Conference．Orlan￾duo‚2003：535 ［9］ 潘继岗‚樊自拴‚孙冬柏‚等．超音速火焰喷涂 Fe 基非晶合 金涂层的性能研究．材料工程‚2005‚16（9）：53 ［10］ 周玉‚范雄．材料分析方法．北京：机械工业出版社‚1999： 183 DSC measurement of the crystallinity of iron-based amorphous alloy coatings by AC－HVAF spraying ZHU Jun‚FA N Zishuan‚SUN Dongbai‚Y U Hongying‚MENG Huimin‚WA NG Xudong Materials Science and Engineering School‚University of Science and Technology Beijing‚Beijing100083‚China ABSTRACT A high amorphous content Fe－based amorphous coating was prepared by the activated combustion high-velocity air-fuel （AC－HVAF） spraying method．According to the thermodynamic transformation theory of amorphous alloys‚the crystallization of the fractional crystallized amorphous alloy is the transformation of residu￾al amorphous phase‚and its transformation enthalpy should be proportional to the phase content of residual amorphous phase．The coating was crystallized by different heat treatment methods．The nanocrystal content in the heated treating coatings and the fractional transformation enthalpy were measured by DSC analysis．The crystallization of the coating was detected．The experimental result basically matched with the data of theoretic forecasting． KEY WORDS amorphous alloy coatings；activated combustion high-velocity air-fuel spraying；crystallization； DSC analysis （下期预告） X70管线钢热变形奥氏体的静态再结晶行为 陈庆军 康永林 孙 浩 于 浩 通过双道次压缩实验‚在 Gleeble1500热模拟实验机上研究了 X70管线钢在不同变形工艺下奥氏体的 软化行为‚分析了不同变形温度、间隔时间、应变速率、变形量及初始奥氏体晶粒尺寸等参数对静态再结晶行 为的影响规律‚采用应力补偿法计算了不同变形条件下的静态再结晶分数．根据实验数据‚计算出 X70管线 钢静态再结晶激活能为435∙3kJ·mol －1‚建立了其静态再结晶动力学模型‚为制定合理的轧制工艺提供了 基础． 第11期 祝 军等： AC－HVAF 喷涂铁基非晶复合涂层结晶度的 DSC 法测定 ·1127·