Analysis and Research on the Cause of the “White Stripe” of 30Cr1Mo1V Side HAZ

J-lin Zhang; Lin Yang; Qian Yan; Ping Zhu; J-kun Xiong; Chang Liu

doi:10.2320/matertrans.MT-MA2022011

Special Issue on Structural Analysis and Measurement of Physical Properties on Advanced and Fundamental Materials

Analysis and Research on the Cause of the “White Stripe” of 30Cr1Mo1V Side HAZ

J-lin Zhang, Lin Yang, Qian Yan, Ping Zhu, J-kun Xiong, Chang Liu

著者情報

キーワード: 30Cr1Mo1V steel, heat-affected zone (HAZ), Gleeble physical simulation, welding thermal cycle

ジャーナルフリー HTML

2022 年 63 巻 4 号 p. 462-467

DOI https://doi.org/10.2320/matertrans.MT-MA2022011

詳細

抄録

In this paper, the reasons for the formation of “white stripe” in the heat affected zone beside low alloy steel of FB2-30Cr1Mo1V dissimilar steel welded joint are analyzed: the microstructure of “white stripe” is tempered sorbite and the grain is fine. The main cause of “white stripe” is composition segregation which hinder grain growth during welding thermal cycle, resulting fine and corrosion-resistant microstructure generated. The peak temperature of welding thermal cycle is main influence factor. Thermal simulation technology was used to reproduce the “white stripe”, which appeared at the peak temperature between 900°C and 1050°C.

Fig. 1 The SAW welding joint of dissimilar steel. Fullsize Image

責任著者(Corresponding author)

J-STAGEへの登録はこちら（無料）