Prediction of HAZ hardness in welds of quenched and tempered HSLA steels

Journal Article · Fri Jan 01 00:00:00 EST 1993 · Welding Journal (Miami); (United States)

OSTI ID:6154092

Zaczek, Z; Cwiek, J ^[1]

---

1. Technology Univ. of Gdansk, (Poland). Inst. of Tech. of Materials and Welding

The present study was subdivided into two sections: a review of the published literature, and experimental work performed on HSLA steels at the authors' laboratory during the past few years. The literature review showed that a simple useful formula for HAZ hardness control in currently produced quenched and tempered HSLA steels Grade E420-690 has not been published. Experimental work was performed on 12 quenched and tempered plates from different melts of four HSLA steels, A maximum HAZ hardness in which cracks have not been observed, and a minimum HAZ hardness over which cracks occur have been noted from controlled thermal severity tests. Statistical calculations and analysis of corresponding experimental data have shown that the best prediction of the critical HAZ hardness may be given by using the carbon equivalent formula of K. Lorenz and C. Dueren for a short cooling time (from 800 to 500 C in 6 s).

• OSTI ID: 6154092
• Journal Information: Welding Journal (Miami); (United States), Vol. 72:1; ISSN 0043-2296
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
HEAT AFFECTED ZONE
HARDNESS
STEELS
WELDABILITY
CARBON
EXPERIMENTAL DATA
PLATES
TENSILE PROPERTIES
ALLOYS
DATA
ELEMENTS
INFORMATION
IRON ALLOYS
IRON BASE ALLOYS
MECHANICAL PROPERTIES
NONMETALS
NUMERICAL DATA
ZONES
360101* - Metals & Alloys- Preparation & Fabrication
360103 - Metals & Alloys- Mechanical Properties