高温合金熔体密度的教学过程设计INSTRUCTIONAL DESIGN OF DENSITY FOR THE HIGH-TEMPERATURE ALLOYMELTS
王海鹏,邹鹏飞
摘要(Abstract):
密度是十分基本且非常重要的物理量,但密度十分常见,因此在高温合金熔体性质教学和学习过程中,常常重视不够,以致影响对高温熔体性质的认识。本文根据高温合金熔体的基本物理化学性质,创新教学方法,精心进行教学过程设计,首先以航空发动机用Inconel718合金的固态和液态密度随温度的变化作为切入点,抓住学生的学习兴趣点,进而“有设计”“有构思”地引出密度测定为什么难、如何进行实验测定、典型的密度变化规律等体系化的知识。这一教学过程设计生动形象地讲授了高温合金熔体密度的课堂内容,深化了液态金属结构与性质的教学效果。
关键词(KeyWords): 教学改革;教学设计;高温合金熔体;液态金属性质;密度
基金项目(Foundation): 陕西省研究生教育综合改革研究与实践项目;; 西北工业大学2021年度校级教育教学改革研究项目(2021JGZ15);; 研究生教育研究基金(批准号:20GZ220101)的资助
作者(Author): 王海鹏,邹鹏飞
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