Accession Number : ADA213400


Title :   The Effect of Nitrogen and Titanium on the Toughness of High Strength Saw Weld Deposits


Corporate Author : MASSACHUSETTS INST OF TECH CAMBRIDGE


Personal Author(s) : Stanko, Stephen W.


Report Date : 12 MAY 1989


Pagination or Media Count : 158


Abstract : This thesis involves the study of nitrogen and titanium additions during submerged arc welding of HY-1000 steel alloy. By comparing the properties of butt-welded HY - 100 plate under various levels of nitrogen and titanium contamination, quantitative conclusions about the effects of these elements were achieved. The ultimate goal of this work was to further the development of consumables and procedures for joining high strength steels. In this endeavor, ten butt-welded HY - 100 sample plates were produced using the submerged arc welding process. With the exception of incremental increases in the nitrogen and titanium concentrations, the welding parameters were held constant for all the test welds. Evaluating and quantifying these compositional variations required comprehensive metallographic examinations, chemical analyses and mechanical testing.


Descriptors :   *BUTT WELDING , PARAMETERS , TOUGHNESS , HIGH STRENGTH ALLOYS , STEEL , NITROGEN , WELDS , TITANIUM , JOINING , CONTAMINATION , CHEMICAL ANALYSIS , METALLOGRAPHY , WELDING , SUBMERGED ARC WELDING , ADDITION , TEST AND EVALUATION , MECHANICAL PROPERTIES


Subject Categories : METALLURGY AND METALLOGRAPHY


Distribution Statement : APPROVED FOR PUBLIC RELEASE