Abbott J R, Miller D R, Netherway D J
J Dent Res. 1985 May;64(5):860-4. doi: 10.1177/00220345850640051501.
The microstructures of (beta + gamma) silver-tin alloys are especially influenced by both homogenization temperature and subsequent heat treatment. When the alloy is cooled from homogenization temperatures above approximately 200 degrees C, lenticular regions of the ordered orthorhombic gamma phase precipitate from within the disordered h.c.p. beta phase on three structurally equivalent planes, (1210), (1120), and (2110), to form a Widmanstatten structure. When the duplex alloys were homogenized at temperatures below approximately 200 degrees C, where the beta/(beta + gamma) phase boundary is vertical, these structures were not observed.
（β + γ）银锡合金的微观结构尤其受到均匀化温度和后续热处理的影响。当合金从高于约200℃的均匀化温度冷却时，有序正交γ相的透镜状区域会在无序的六方密堆积β相内部，在三个结构等效平面（1210）、（1120）和（2110）上析出，形成魏氏组织。当双相合金在低于约200℃的温度下均匀化时，β/（β + γ）相界是垂直的，此时未观察到这些结构。
