The Amorphous Alloy
The Amorphous Alloy
复制标题
非晶合金
作者：
D. Mclean
1920年，Rosenhain、豪顿和Bingham描述了一种锌/铝/铜合金（89/7/4），它的机械性能类似于非晶态材料，因为它在室温下缓慢变形时具有延展性，但快速变形时却很脆。一个简单的例子是，一块由金属制成的薄板如果缓慢弯曲，会弯曲一倍，如果快速弯曲，会折断，就像沥青这样的无定形材料一样。看来，没有令人满意的解释，这种行为已提出符合现代观念。
IN 1920 Rosenhain, Haughton and Bingham1described a zinc/aluminium/copper alloy (89/7/4) the mechanical properties of which resembled those of an amorphous material, in that it was ductile at room temperature when deformed slowly but brittle when deformed quickly. A simple demonstration of this was that a piece of sheet made from the metal would bend double if bent slowly but snapped if bent quickly, just like an amorphous material such as pitch. It appears that no satisfactory explanation of this behaviour has been put forward that conforms with modern ideas.