周志宏对魏氏组织及马氏体的形成和形貌的早期金相研究

关于铁合金中相变的详尽显微组织方面的早期研究之一是由艾伯特·苏佛教授的学生周志宏（哈佛大学博士，１９２８年）完成的。该项研究描述了铁碳合金中魏氏组织和马氏体的形成，所用合金具有宽的碳含量范围，热处理时采用的冷却速率范围也是宽的。还描述了一种独特的汞浴淬火方法。此研究工作从未完全发表过。本文援引该博士论文中的一些原始显微组织照片和部分原文，并试图用我们现今对于铁合金相变的理解来阐明和重新诠释。文中还包括中国引进现代工业和科学的历史背景，以及周志宏对苏佛教授的个人回忆。

The Early Metallographic Studies of Chih-Hung Chou on the Formation and Morphology of Widmanstatten Structure and Martensite

One of the early studies concerning the detailed microstructural aspects of phase transformations in iron-carbon alloys was performed by Chih-Hung Chou(Ph. D. Harvar,1928),a student of Professor Albert Sauveur. The research describes the formation of Widmanstatten structure and martensite in iron-carbon alloys possessing a broad range of carbon contents and heat treated using a broad range of cooling rates. A unique mercury quench method is described.This research work was never fully published. The present paper shows original photomicrographs and portions of the written text from the dissertation, and seeks to clarify and reinterpret these in terms of our present understanding of ferrous phase transformations. Also included is the background history of the introduction of modern industry and science in China, and Chou's personal reminiscences of Professor Sauveur.