Electron beam welding of heavy-section 3 Cr-1. 5 Mo alloy

Conference · Tue Dec 31 23:00:00 EST 1985

OSTI ID:6123527

King, J F; David, S A; Sims, J E; Nasreldin, A M

Electron beam welding is a process that could have advantages for the fabrication of heavy-section steel components such as pressure vessels. The penetrating ability of the beam produces welds with high depth-to-width ratios at relatively high travel speeds, making it possible to weld thick section with one or two passes without filler metals and other consumables. This paper describes a study that was undertaken to investigate the feasibility of using a high-power electron beam welding machine to weld heavy-section steel of 3 Cr-1.5 Mo-0.1 V alloy. Single-pass welds were made in 102-mm thick (4 in.) plates of this alloy. The main emphasis of this work was concentrated on determining the mechanical properties of the resulting weldment, characterizing the microstructure of the various weldment regions, and comparing these results with those from other welding processes. All characterization testing showed that the electron beam weldment in 3 Cr-1.5 Mo-0.1 V steel had excellent properties either matching or exceeding those of the base metal and weld metal from submerged arc welding and shielded metal arc welding processes.

• Research Organization: Oak Ridge National Lab., TN (USA)
• DOE Contract Number: AC05-84OR21400
• OSTI ID: 6123527
• Report Number(s): CONF-8604123-1; ON: DE86005595
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360101 -- Metals & Alloys-- Preparation & Fabrication
42 ENGINEERING
420200* -- Engineering-- Facilities
Equipment
& Techniques
ALLOYS
CHROMIUM ALLOYS
CHROMIUM STEELS
CHROMIUM-MOLYBDENUM STEELS
CONTAINERS
ELECTRON BEAM WELDING
FABRICATION
IRON ALLOYS
IRON BASE ALLOYS
JOINING
JOINTS
MECHANICAL PROPERTIES
PRESSURE VESSELS
STEELS
WELDED JOINTS
WELDING