材料学 - 2026 进行中

科目: 材料学
级别: VII
类别: 大学生
测试题目: 英语
问题示例: A binary alloy contains 30 wt% B and lies in an α + β region. The phase compositions are 20 wt% B for α and 50 wt% B for β. What is the mass fraction of the α phase under equilibrium? 0.33, 0.67, 0.50, 0.75