標題：汽輪機葉片鍛模失效分析
作者：張忠文，謝彬，劉明松，何應強，朱黎明，廖青（東方汽輪機有限公司鑄鍛事業部，四川德陽618000）
摘要：對汽輪機葉片鍛模的結構特點進行了分析，并對失效后的鍛模進行了藍光掃描試驗、宏觀觀察斷口、掃描電鏡、能譜分析、硬度檢測等分析與研究，找出鍛模失效的主要形式和根本原因，針對汽輪機葉片鍛模的使用情況，提出了延長鍛模使用壽命的方法。
關鍵詞：汽輪機葉片；鍛模；失效分析；葉冠段；硬度檢測
中圖分類號：TG315.2 文獻標識碼：B 文章編號：1001-2168（2019）09-0057-06
DOI：10.16787/j.cnki.1001-2168.dmi.2019.09.012
Failure analysis of forging die for steam turbine blade
ZHANG Zhong-wen, XIE Bin, LIU Min-song, HE Ying-qiang, ZHU Li-ming, LIAO Qing (Casting and Forging Division, Dongfang Turbine Co., Ltd., Deyang, Sichuan 618000, China)
Abstract: The structure characteristics of a forging die for steam turbine blade were analyzed. The failure forging die was analyzed and studied by blue-light scanning experiment, macroscopic observation fracture, scanning electron microscopy, energy spectrum analysis and hardness measurement. The main forms and root causes of the forging die failure were found out. Aiming at the working conditions of forging die for steam turbine blade, the method was put forward to prolong its service life.
Key words: steam turbine blade; forging die; failure analysis; integral tip shroud; hardness measurement