Use this URL to cite or link to this record in EThOS:
Title: Development of microstructure in high-strength weld deposits
Author: Yang, Jer-Ren
ISNI:       0000 0001 3574 3419
Awarding Body: University of Cambridge
Current Institution: University of Cambridge
Date of Award: 1988
Availability of Full Text:
Access from EThOS:
Full text unavailable from EThOS. Please try the link below.
Access from Institution:
The microstructure of high-strength weld deposits has been investigated using thermodynamic analysis and phase transformation theory, backed by experimental confirmation. The microstructures of both the fusion and reheated zones of multirun alloy-steel weld deposits have been studied. The transformation mechanism of acicular ferrite has been established, and a theory for reaustenitisation in steel weld deposits has also been proposed. In addition to the studies on weld metals, some model alloys were fabricated and tested in order to confirm some of the predictions made by the new theory for reaustenitisation. All the weld metals studied in the investigation possess good hardenability. The primary microstructures of the fusion zone of these deposits consist mainly of acicular ferrite with very little allotriomorphic ferrite.
Supervisor: Bhadeshia, H. K. D. H. Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
Keywords: Microstructure of steel welds