A Study of the Cold Cracking of Carbon Steels
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概要
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The cold cracking of some steels was examined with the implant testing method. Materials used were two types of commercial carbon steels, S45C and S55C. The cold cracking susceptibilities were evaluated by the critical stress of the implant test. The conclusions were as follows. 1)The preheating decreased the cold cracking susceptibility, and when the preheating temperature exceeded 200℃, the cracking didn't occur. Under this condition, martensite was not observed in the heat affected zone. 2)To dry the electrode is effective in the case with the preheating, compared with no preheating. It is desired that the welding is carried out using dried electrode with the preheating. 3)The blowholes were scarcely occured when the preheating is not employed. When the preheating temperature exceeded 300℃, however the blowholes were remarkably increased.
- Faculty of Engineering, Mie Universityの論文
- 1979-12-00
Faculty of Engineering, Mie University | 論文
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