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Process Practice for Improving Impact Toughness of Tanker Steel Plate P460NL1
Pages: 10-13
Year: Issue:  5
Journal: Wide and Heavy Plate

Keyword:  断口分层缺陷短时回火;
Abstract: 舞钢研制的18 mm厚罐车用P460NL1钢板经过正火处理后,冲击功保持在50~60 J,富余量较小.冲击断口分析表明,冲击功富余量不高是由于局部断口分层缺陷造成硬相组织集中分布所引起的.钢板经过正火和短时回火处理后,硬相组织分解,软硬相分配合理,冲击功得到大幅度提高.
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