差热分析法在金属材料方面的应用  

The Application of the Differential Thermal Analysis in the Field of Metal Matericals

作　　者：李维娟[1] 

机构地区：[1]鞍山钢铁学院冶金系

出　　处：《鞍山钢铁学院学报》1993年第4期24-27,共4页Journal of Anshan Institute of Iron and Steel Technology

摘　　要：用差热分析法测定了钢的相变临界点 A_(c1),A_(c3),根据此临界点制定了钢的正火工艺。检验了该钢正火后的显微组织,测定了其机械性能。为扩大其应用范围,又对该钢进行了低温回火,测定了正火后低温回火的硬度,对正火后低温回火过程中显微组织的变化,用差热分析法又作了进一步探讨。The critical points of phase change of steels Ac_1 and Ac_3 are determined by using the method of differen- tial thermal analysis,which help to fix the normalizing processes of steels.The microscopic structures and mechanical properties of steels after being normalized are checked.In order to make wide use of the application of this method,experiments of tempering hardness and the change of microscopic strnctures of steels in the processes of temperiug after being normalized are investigated by using this method.

关 键 词：差热分析 金属材料 临界点 钢 

分 类 号：TG142.15[一般工业技术—材料科学与工程]