摘要
运用 X 光,金相和透射电镜等显微分析技术观察分析了快速凝固 Ni-Mo-Cr-B 台金粉未的凝固组织,研究结果表明,粉未尺寸由大到小,其组织经历了共晶、枝晶,胞晶和非晶等一系列演变,高硼含量有助于非晶形成。
The microstructure of rapidly solodified Ni-Mo-Cr-B alloy powder has been studied by X-ray diffraction,and optical and transmission electron microseopy.The experimental results showed that a series of evolution is eff- ected from amorphous to cellular,dendritical and eutectic structure when the particulate size changes from small to large,and also showed that high boron content is useful to amorphous formation.
基金
国家自然科学基金。
关键词
Ni-Mo-Cr-B
合金粉末
凝固组织
Ni-Mo-Cr-B alloy powder
ultrasonic gas atomization
solidification structure
amorphous
