t92

T92 / HR3C dissimilar steel welded joints is completely suitable under the conditions of high-capacity ultra-supercritical unit ( USC ) .

T92/HR3C异种钢焊接接头在大容量超超临界机组（USC）条件下服役是完全安全可靠的。

Through hardness test , impacting test , SEM of failure surface and microstructure observation , the relationship between the toughness and its microstructure of welding joint of T92 steel was studied .

通过硬度试验、冲击试验、断口扫描和金相组织观察，研究了T92钢焊接接头的韧性与组织的关系。

The detailed research contents and results are summarized as follows : 1 . T92 / HR3C , T92 / Super304H dissimilar materials joints are obtained by gas tungsten arc welding ( GTAW ) process .

本文具体研究工作及结果如下：1.采用钨极氩弧焊（GTAW）焊接工艺对T92与奥氏体钢HR3C，Super304H分别进行焊接，获得T92/HR3C，T92/Super304H异种钢焊接接头。