Widmanstätten pattern - Wikipedia
Widmanstätten patterns, also known as Thomson structures, are figures of long phases of nickel–iron, found in the octahedrite shapes of iron meteorite crystals and some pallasites. Iron …
Widmanst ̈atten Ferrite. Primary Widmanst ̈atten ferrite either directly grows from the austenite grain surfaces, whereas secondary Widmanst ̈atten ferrite develops from any allotriomorphic …
Widmanstätten ferrite - University of Cambridge
Widmanstätten ferrite. The term Widmanstätten can in principle also be written "Widmanstaetten", because the official replacement for the a-Umlaut character (ä) on systems that don't support …
魏氏体 - 百度百科
组织简介. 工业上将先共析的片 (针)状铁素体或片 (针)状碳化物加珠光体组织称魏氏组织，用W表示。 前者称α-Fe魏氏组织，后者称碳化物魏氏组织: 亚共析钢. (1)一次魏氏组织F：从奥氏体中 …
Widmanstatten ferrite - Theory of Transformations in Steels
Widmanstatten ferrite (aw) gets its name from the plate-shaped crystals that are arranged in patterns reminiscent of the macrostructures found in some meteorite specimens. The patterns …
Widmanstätten Structures - Technische Fakultät
The expressions "Widmannstätten ferrite", "Widmannstätten structure", Widmannstätten pattern" and so on refer to two or rather three completely different things: A very special structure …
Widmanstatten Structure - an overview | ScienceDirect Topics
The formation of ferrite at very low cooling rates is seen in meteorite structures (Fe-Ni-based alloys), which exhibit classical Widmanstätten structures. The slow cooling rates experienced …
Widmanstatten ferrite - University of Cambridge
Abstract. The implementation of the theory of diffusion-controlled growth of ferrite plates in plain-carbon steels is critically assessed. It is found that the use of empirically extrapolated diffusion …
Phase field modeling of Widmanstätten ferrite formation in steel
2018年11月15日 · A phase field model for Widmanstätten ferrite formation is proposed to quantify the effects of interface anisotropy, misfit strain, and multicomponent diffusion, and is …
Thermodynamics and kinetics of the formation of widmanstätten ferrite ...
Experimental data on the formation of Widmanstätten/bainitic ferrite in ferrous alloys (i.e., the Widmanstätten start temperature, partition of alloying elements, incomplete transformation, …