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Welding of New Type Heat - Resisting Steel Used in Ultra - supercritical Pressure Boiler
Author(s): 
Pages: 11-14
Year: Issue:  4
Journal: ELECTRICAL EQUIPMENT

Keyword:  超超临界机组锅炉耐热钢焊接火力发电厂;
Abstract: 目前火电机组正在向着高参数大容量方向发展,蒸汽温度和压力进一步提高,为此开发了一些新型马氏体耐热钢和奥氏体耐热钢.这些钢的合金元素含量较以前的锅炉用钢更高,焊接性能相比之下有所下降.文章主要介绍了超超临界机组用新钢种的焊接性能、化学成分、焊接接头的组织、蠕变性能和典型的失效方式等.
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