Acta Metall Sin  1996, Vol. 32 Issue (8): 891-89    DOI:

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FORMATION OF INTRAGRANULAR FERRITE PLATES AND THEIR EFFECT ON HEAT AFFECTED ZONE OF STEEL X-60

ZHU Yuru; GUO Shuqiang; XU Jianlun; JIANG Guochang (Shanghai Enhanced Laboratory of Ferrometallurgy; Shanghai University; Shanghai 200072); YU Diwei;PAN Liying; WANG Yueqiang (Institule of Iron & Steel; Baoshan Iron & Steel Corporatton; Shanghai 201900)(Manuscript received 1995-10-20; in revised form 1996-02-08)

ZHU Yuru; GUO Shuqiang; XU Jianlun; JIANG Guochang (Shanghai Enhanced Laboratory of Ferrometallurgy; Shanghai University; Shanghai 200072); YU Diwei;PAN Liying; WANG Yueqiang (Institule of Iron & Steel; Baoshan Iron & Steel Corporatton; Shanghai 201900)(Manuscript received 1995-10-20; in revised form 1996-02-08). FORMATION OF INTRAGRANULAR FERRITE PLATES AND THEIR EFFECT ON HEAT AFFECTED ZONE OF STEEL X-60. Acta Metall Sin, 1996, 32(8): 891-89.

Abstract References Related Articles Recommended Metrics Download:  PDF(395KB)  Export:  BibTeX | EndNote (RIS)       Abstract  The heat affected zone (HAZ) toughness of steel X-60 after simulation tests of molten welding was improved by means of the technology of intragranular ferrite plate (IFP).It was found that the absorbed energy during impect tests depends strongly on the quantity of IFP. If the volume fraction of IFP is larger than 60%, then the absorbed energy will go up to 150 J and more. The examination of optical microscopy and SEM exhibited that IFP consists of fine ferrite plates originating inside the initial austenite grains. These IFP forined by the so called "nucleating inclusions" as nuclei during the controlled cooling process after welding simulation. The nucleating inclusions are some fine and evenly distributed composite oxides with higher sulphur content, which result from the deoxidation by RE, Zr, Ti under a higher initial oxygen potential. Correspondent:(JIANG Guochang, professor, Shanghai Enhanced Laboratory of Ferrometallurgy (SELF),Shanghai University, Shanghai 200072) Key words:  intragranular ferrite      welding heat affected zone      composite oxide      sulphur capacity      Received:  18 August 1996      Service E-mail this article Add to citation manager E-mail Alert RSS （） Articles by authors URL:  https://www.ams.org.cn/EN/     OR     https://www.ams.org.cn/EN/Y1996/V32/I8/891 1蒋国昌．纯净钢及二次精炼．上海:上海科学技术出版社,1996:2232黑泽文夫,铃木茂．日本金属学会会报,1991;30:5403TomitaY,SaitoN,TsuzukiT,TokunagaY,OkamotoK．ISIJInt,1994,34:8294LeeJye-Long,PanYeong-Tsuen．ISIJInt,1995;35:10275上岛良之,汤山英俊,沟口庄三,博幸．铁钢,1989;75:501P [1] Mingyue WEN, Wenchao DONG, Huiyong PANG, Shanping LU. Microstructure and Impact Toughness of Welding Heat-Affected Zones of a Fe-Cr-Ni-Mo High Strength Steel[J]. 金属学报, 2018, 54(4): 501-511. [2] wWang wei; Li－Ming Fu. Effect of the Inclusions/precipitates size on the Intragranular ferrite nucleation[J]. 金属学报, 2008, 44(6): 723-728 . [3] WU Kaiming. Growth Kinetics of Intragranular Ferrite in a Low Carbon Microalloyed Steel[J]. 金属学报, 2006, 42(6): 572-576 . No Suggested Reading articles found! Viewed Full text Abstract Cited   Shared      Discussed