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本文对1Cr5Mo焊接件的开裂失效进行了分析,认为失效的主要原因是焊接件在焊后未进行有效的热处理,在环境条件及应力作用下运行焊接裂纹在硬脆的焊缝材料中迅速开裂扩展。对1cr5Mo焊接件严格进行焊后热处理是保证安全运转的必要条件。
In this paper, the cracking failure of 1Cr5Mo welded parts is analyzed. The main reason of failure is that the welded parts are not effectively heat-treated after welding. The welding cracks are rapidly cracked and expanded in hard and brittle weld materials under the environmental conditions and stress . 1cr5Mo welding parts strictly after welding heat treatment is to ensure the safe operation of the necessary conditions.