Carl R. Loper, Jr. Professor, Retired Address/E-mail Program Affiliations Education Fields of Interest Publications Summary

Contact Information

227 Materials Science and Engineering Building 1509 University Avenue Madison, WI 53706

Tel: 608/262-2562 Fax: 608/262-8353 E-mail: loper@engr.wisc.edu

Program Affiliations

• Materials Science and Engineering

Education

• BS (metallurgical engineering) 1955, University of Wisconsin-Madison
• MS (metallurgical engineering) 1958, Unversity of Wisconsin-Madison
• PhD (metallurgical engineering) 1961, University of Wisconsin-Madison

Fields of Interest

• metallurgical manufacturing processes
• solidification in casting/welding operations
• ductile cast irons
• struture morphology
• aluminum casting alloys
• refinement/modification
• primary phase morphology
• thermal analysis of solidification transformation
• structure control in fusion processes

Publications

• L.Y.Fang, K.E.Metzloff, R.C.Voigt, and C.R.Loper, Jr., Factors Affecting Measurement of Modulus of Elasticity in Ductile Irons, AFS Trans. 103, 31-39, (1995).
• K.E.Metzloff, L.Y.Fang, and C.R.Loper, Jr., Manufacturing Characteristics of High Modulus, Low CE Ductile Irons, AFS Trans., 103, 109, (1995).
• A.Javaid and C.R.Loper, Jr., Quality Control of Heavy Section Ductile Cast Iron, AFS Trans. 103, 135-150, (1996).

Summary

We are characterizing the morphology of the graphite phase formed during the solidification of cast irons and determining chemical and process-related parameters affecting these structures. These programs entail the production of specific castings and the evaluation of the structures developed using a wide range of optical and electron-optical techniques as well as assessing the resultant mechanical properties.

An extension of these studies involves procedures to produce graphite having a predetermined crystallographic orientation as a result of solidification processes. Additional studies relating to the cast irons concern factors (alloying and thermal processing) affecting the matrix structure and the modeling of the development of the matrix and associated properties.

Eutectic modification in aluminum-silicon alloys and the growth of primary silicon in aluminum casting alloys also are being studied in an attempt to clarify the mechanisms involved in these transformations.

Model development of solidification processes, an important phase of process control, is being created in association with industrial and laboratory operations.