金属学报  1978, Vol. 14 Issue (2): 171-252

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关于20Cr2Ni4A钢轴心晶间裂纹本质的研究

田继丰;刘兴志;魏堃

AN INVESTIGATION OF CERTAIN INTERGRANULAR CRACKS IN THE CORE OF A 20Cr2Ni4A STEEL BILLET

Tian Ji-feng Liu Xing-zhi and Wei Kun

田继丰;刘兴志;魏堃. 关于20Cr2Ni4A钢轴心晶间裂纹本质的研究[J]. 金属学报, 1978, 14(2): 171-252.
, , . AN INVESTIGATION OF CERTAIN INTERGRANULAR CRACKS IN THE CORE OF A 20Cr2Ni4A STEEL BILLET[J]. Acta Metall Sin, 1978, 14(2): 171-252.

摘要 参考文献 相关文章 Metrics 全文: PDF(12158 KB)   摘要: 对20Cr2Ni4A钢200毫米方坯的低倍试片所出现的轴心晶间裂纹进行了观察,结果说明:轴心晶间裂纹是一种低倍酸蚀现象。它是由分布于树枝晶间的低熔点夹杂物,在低倍酸蚀过程中优先溶解而引起的。实验室内25公斤感应电炉试验,证实了轴心晶间裂纹和低熔点夹杂物有关。 Abstract：An investigation has been carried out on the so-called intergranular cracks appearing in the central part of a macroetched transverse section of a 20Cr2Ni4A steel billet. It is shown that this in fact was a kind of acid-etching phenomenon, due to low-melting inclusions at the interdendritic boundaries appearing as cracks. The above observation was further substantiated in laboratory ingots by the introduction of certain low-melting inclusions into experimental melts. 收稿日期: 1978-02-18      服务 把本文推荐给朋友 加入引用管理器 E-mail Alert RSS 作者相关文章 田继丰 刘兴志 魏堃 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1978/V14/I2/171 [1] “晶间裂纹”三结合研究小组,金属学报,10(1974) ,41． [2] 金属研究昕,大连钢厂联合研究组,金属学报,14(1978) . [3] Sims, C. E., Trans. AIME, 215 (1959) , 367． No related articles found! Viewed Full text Abstract Cited   Shared      Discussed