QUARTERLY JOURNAL OF THE JAPAN WELDING SOCIETY
Print ISSN : 0288-4771
Weldability and Weldment Toughness of Newly Developed 100kgf/mm2 grade High Tensile Strength Steel
Toshihiko MatsuuraYoshihiro KureYukiomi NishigamiItaru WatanabeMotoaki SuzukiShin Sakui
Author information
JOURNALS FREE ACCESS

1985 Volume 3 Issue 1 Pages 124-131

Details
Abstract

The applicability of 100 kgf/mm2 grade high tensile strength steel developed for penstock was evaluated in this paper. Firstly, five kinds of weld-cracking tests were performed and it was demonstrated that the 100 kgf/mm2 grade steel, including its weld metal, has a good resistance for cold cracking. Secondly, mechanical properties and fracture toughness were investigated and evaluated the safety of the weldment against brittle fracture. As a result, it is confirmed that the 100 kgf/mm2 grade steel weldment has enough toughness to prevent the brittle fracture. Finally, the corelation between fracture toughness and absorbed energy obtained by Charpy-V test was investigated, and Charpy-V values required to prevent the brittle fracture was proposed.

Information related to the author
© by JAPAN WELDING SOCIETY
Previous article Next article
feedback
Top