A generic approach to improved semi-solid forming of metals

Klier, E. M.

Chesapeake Composites Corporation (United States)

关键词: Alloy Systems;    Alloys;    36 Materials Science;    Production;    Chemistry;   

DOI  :  10.2172/820053
RP-ID  :  DOE/ER/82763-2
RP-ID  :  FG02-99ER82763
RP-ID  :  820053

美国|英语

来源: UNT Digital Library

【 摘 要 】

Lack of technology for the production of large inexpensive feedstock, with uniform spherical primary phase throughout as required for semi-solid forming, has restricted realization of the full potential for the semi-solid forming process. Furthermore, narrow process windows and alloy chemistry restrictions increase process costs and limit performance attributes possible with existing semi-solid metal systems. Successful semi-solid forming trials utilizing Chesapeake Composites Corporation's DSC trademark Metals for feedstock indicate that this represents a generic approach to providing a permanent highly uniform, spherical solid phase, without electromagnetic or mechanical shearing. This approach also provides for further growth of semi-solid forming by providing for: low cost large diameter billet stock, reduced semi-solid forming costs, extension of semi-solid forming to new alloy systems, and semi-solid formed components with substantially enhanced physical and mechanical proper ties.