Department of Materials Science and Engineering

Ph.D., Metallurgical Engineering University of Illinois, Urbana 1986
B.S., Metallurgical Engineering University of Illinois, Urbana 1981

• 3/01 - present Professor at Iowa State University
• 4/93 - 3/01 Associate Professor at Iowa State University
• 5/87 Assistant Professor at Iowa State University
• 7/83 Teaching Assistant, University of Illinois, Urbana. Served as a laboratory teaching assistant for a workshop on convergent beam electron diffraction

• Electron Microscopy (including teaching applications),
• Highly Alloyed Cast Steels,
• Complex rare-Earth Alloys,
• Deformation of B2 Intermetallics,
• Solidification and Vitrification of Marginal Glass Formers,
• New Materials for Hydrogen Storage Applications,
• Forensic Applications of Electron Microscopy,
• Educational Outreach via Web Operable SEM

Proposals Funded Last Five years
• Request for Undergraduate Hourly Support (NSF), 2000-02 $10,000
• Investigation of Complex Systems (DOE), 2000-02 $2,000,000Co-PI with V. Pecharsky
• Enhancing Science & Introducing Eng. in K-12 (NSF), 1999-02 $1,500,000Participant in LAS, Eng. and Ed colleges joint proposal
• TTT Characteristics of Steel Casting Alloys (DOE) 2002-4 $135,000Co-PI with B. Gleeson, subcontract with Univ. of Alabama
• Development of an SEM simulator the iSEM (SBIR-NSF), 2002 $18,000Subcontract to RJ Lee Group
• Nanophase Processing of Magnetic Materials (Ames Lab-DoE) 2002-3 $30,000Co-PI with J. Shield, Univ of Nebaska - Lincoln
• Characterization of Tooling Marks (DOJ-MFRC) 2003 $90,000Principal Investigator
• Development of a Mobile Interactive Classroom (ISU-CAC) 2003 $14,000Co-PI with A. Russell and L. Genalo
• Determination of TTT and CCT Diagrams (DoE) 2004-7 $340,000Co-PI with B. Gleeson

• MSE 301L - Physical Metallurgy Laboratory, F'87 - F'90
• MSE 590 - Analytical Electron Microscopy, S'88
• MSE 690B - Scanning Transmission Microscopy, S'89 - S'94
  Special Topics, F'89
• MSE 244 - Introduction to Instrumentation, April -May 89, S'90
• MSE 585 - Scanning Electron Microscopy, F'90 - 94
• MSE 315 - Instrumentation for Materials Characterization, F'91-F'98
• MSE 421 - Senior Design, Faculty Advisor, S'95, S'97-99, F01, S02-03
• MSE 534 - Electron Microscopy F'95 - present
• MSE 625 - Transmission Electron Microscopy S'96, S'98, S'00
• MSE 202 - Materials Processing S'99
• Mat E 214 - Structural Characterization of Materials S'00, S02-'03
• Mat E x13 - Integrated Design, F'02-03
• Mat E 391x - Study Abroad - MSE in London S'02-03
• Mat E 392x - Study Abroad - MSE in London SS '03, 05, 07
• Mat E 444 - Corrosion and Failure Analysis - S'05-07

Refereed Publications, Last Five Years
Students marked by *

• L.S. Chumbley, C.P. Hargrave, K. Constant,  B. Hand, T. Andre, "Project ExCEL - Web-based SEM for K-12 Education," J Eng Ed, 91, 2, April, 2002.
• L. S. Chumbley, G. Cassucio, D. Kritikos, H. Lentz, C. Mannes*, K. Mehta*, “Development of a Web-based  SEM Specifically for K-12 Education,” Micro Res. and Tech., 56, #6, March, 2002.
• J. Meyers*, L.S. Chumbley, F. Laabs, and A.O.Pecharsky, “Determination of Phases in As-Prepared Gd5(SixGe1-x)4, Where X≈2,” Scripta Mat, 47 (2002) 509-514.
• J. Meyers*, L.S. Chumbley, W. Choe, and G.J. Miller, “A Microstructural Analysis of Twinned Gd5Si2Ge2” Phys. Rev. B, 66,  (2002).
• J. Meyers*, L.S.Chumbley, F. Laabs, and A.O. Pecharsky, “TEM Analysis of (Gd5SiXGe1-X) where X=1/2” Acta Met., 51 61-70, 2003.
• W. Choe,  G. J. Miller, John Meyers*, S. Chumbley, and A. O. Pecharsky, “Nanoscale Zipper” in the Crystalline Solid: How the Nanoscale Zipping Action Can Create Structural Variations in the Magnetocaloric Material Gd5(Si1.5Ge2.5),” Chem. Mater. 2003, 15, 1413-1419.
• R. Huang*, K. R. Hebert, and L. S. Chumbley, “Behavior of Near-Surface Voids in Aluminum During Anodic Oxidation,” J. Electrochem. Soc., 151, (7), B379-B386 (2004).
• K. Wongpreedee*, A.M. Russell, and L.S. Chumbley, “Thermal Stability of Deformation Processed Gold-Silver Composite,” Vol 49, No. 5, pp. 399-403, 2003.
• P.B. Wheelock*, K. Wongpreedee*, A.M. Russell, and L.S. Chumbley, “A Deformation Processed Ti Metal-Metal Composite,” J. Mat. Sci., 37 (2002) 4307-4313.
• L.S. Chumbley, F.C. Laabs, M. Smith, "Analysis of Explosive Damage in Metals Using Orientation Imaging Microscopy," J. For. Sci., 50 (1) 104-111 (2005).
• E. Johnson*, Y. Kim*, L. S. Chumbley, and B. Gleeson, “Preliminary Phase Transformation Diagram Determination for the CD3MN Cast Duplex Stainless Steel,” Scripta Mat 50 (2004) 1351-1354.
• J. Sharp, K. Hoiberg, and S. Chumbley, “Comparing Crystals”, Science & Children,,Vol 41, #2, October, 2003.
• Y-J Kim*, L.S. Chumbley, B. Gleeson, "Determination of Isothermal Transformation Diagrams for Sigma-Phase Formation in Cast Duplex Stainless Steels", Met Trans., 35A, November, 2004,  pp 3377-3386.
• E.C. Hagberg, B. Goodridge, O. Ugurlu, S. Chumbley and V.V. Sheares, “Development of a Versatile Methodology for the Synthesis of Poly(2,5-benzophenone) Containing Coil-Rod-Coil Triblock Copolymers,” Macromolecules,  37, 3642-3650, 2004.
• Y-J Kim*, O. Ugurlu, C. Jiang, B. Gleeson, L.S. Chumbley, " Microstructural Evolution of Secondary Phases in the Cast Duplex Stainless Steels CD3MN and CD3MWCuN, accepted,  Met Trans.
• O. Ugurlu*, L.S. Chumbley, D. L. Schlagel and T. A. Lograsso, “Characterization of an Atypical Widmanstatten Structure in Gd5(SixGe1-x)4”, Acta Mat. 53 (2005) 3525-3533.
• O. Ugurlu*, L.S. Chumbley, D. Schlagel and A.O. Pecharsky, “Identification  of Thin Plates Seen In R5(SixGe1-x)4 Alloys, where R is Gd, Tb, Dy and Er”, Scripta Mat. 53 (2005) 373-377.
• D. Hillman* and L.S. Chumbley, “Characterization  of Sn Oxidation Products Using Sequential Electrochemical  Reduction Analysis (SERA)” Sold. Surf. Mount Tech., 18, 3, 31-41, 2006.
• A.E. Chumbley , L.S. Chumbley, G. Casuccio, H. Baron*, “Conducting, On-line, Interactive,  Scanning Electron Microscopy Lessons around the World,” JME, 27 (3-6),  105-114, November 2005.
• O. Ugurlu*, L.S. Chumbley, D. L. Schlagel and T. A. Lograsso, “Orientation and Formation of an Atypical Widmanstatten Structure in the Gd5(SixGe1-x)4 System”, Acta Mat., 54, 5, March 2006, pp1211-1219.
• D. Wu, O. Ugurlu*, L.S. Chumbley, M.J. Kramer, T.A. Lograsso, “Synthesis and Characterization of Hexagonal Cd51Yb14 Single Crystals,”Phil Mag, 3-5/04 January 2006, 86,  3-5, pp. 381-387(7).
• O. Ugurlu*, L.S. Chumbley, “Persistance of 5:3 Plates in RE5(SixGe1-x)4 Alloys”, J. Mater. Res., Vol 21, No. 10, Oct 2006.
• O. Dolotko, H. Zhang, O. Ugurlu, J Wiemch, M. Pruski, L.S. Chumbley, and V. Pecharsky, “Mechanochemical Reactions Between Li(Na)AlH4 and Li(Na)NH2 Complex Hydrides,” accepted, Acta Mat.
• A.E. Chumbley and L.S. Chumbley, “WebSEM: An Assessment of K:12 Remote Microscopy Efforts,” accepted by Scanning.
• D. Faden*, J. Kidd*, J. Craft*, L.S. Chumbley, M. Morris, L. Genalo, J. Kreiser, S. Davis*, “Statistical Confirmation of Empirical Observations Concerning Toolmark Striae,” to be published, Spring AFTE.
• Y.E. Kalay*, L.S. Chumbley, I.E. Anderson and R.E. Napolitano, “Characterization of Hypereutectic Al-Si Powders Solidified under Far-From-Equilibrium Conditions,” to be published, Met Trans.
• L.J. Genalo and L.S. Chumbley, “An Undergraduate Materials Recruitment and Outreach Program,”refereed proceedings of ASEE, Hawaii, June 2007.
• Cao G.H., Shechtman D., Wu D.M., Becker A.T., Chumbley L.S., Lograsso T.A., Russell A.M., and Gschneidner K.A., “Determination of Slip Systems and their Relation to the High Ductility and Fracture Toughness of B2 DyCu”, accepted,  Acta Mat, 2007.

Unrefereed Proceedings, Last Five Years
Students marked by *

• L.S. Chumbley, D.J. Eisenmann*, A.E. Chumbley, T. Frizell*, ,T. Andre and C.P. Hargrave, "The WebSEM in K-12 Classrooms: Lessons Learned", MSA, Quebec City, Aug. 2002.
• E.J. Johnson*, Y-J Kim*, L.S. Chumbley, B. Gleeson, "Initial TTT Diagram Investigation of CD3MN Cast Duplex Stainless Steels", Proc. 56th T&O Conf., Steel Founders' Soc., Nov., 2002.
• Y-J Kim*, L.S. Chumbley, B. Gleeson, E.J. Johnson, "Transformation Diagrams for CD3MN and CD3MWCuN Duplex Stainless Steels," Technical and Operating Conference, Steel Founders Society of America, Chicago, IL, Nov. 6, 2003.
• O. Ugurlu*, L.S.Chumbley, D. Schlagel, T.A. Lograsso, A. Pecharsky, “Characterization of R5(SixGe1-x)4 Alloys Where R is Gd, Tb, Dy, and Er,” Light Metals 2005, TMS pub., Feb 2005.
• Y-J Kim*, L.S. Chumbley, B. Gleeson, "Transformation Diagrams of Intermetallic Phase Precipitation in Cast Duplex Stainless Steels CD3MN and CD3MWCuN," Technical and Operating Conference, Steel Founders Society of America, Chicago, IL, Nov 4-6, 2004.
• N.S.L. Phillips*, L.S. Chumbley, B. Gleeson, “Determination of Isothermal Diagrams for Sigma and Chi Phase Formation in Superaustenitic Stainless Steels,” Technical and Operating Conference, Steel Founders Society of America, Chicago, IL, Nov 2-5, 2005.
• A.E. Chumbley, L.S. Chumbley, “Assessment of WebSEM K-12 Outreach Efforts,” proceedings Microscopy and Microanalysis 2006, Chicago, IL.
• O. Ugurlu, L.S. Chumbley, T.A. Lograsso and D.L. Schlagel “Orientation relationship and growth direction determination of Gd5Ge3 phase in Gd5Ge4 matrix” proceedings Microscopy and Microanalysis 2006, Chicago, IL.
• N. Phillips*, L.S. Chumbley, B. Gleeson, and O. Ugurlu “Determination of Phase Transformations in Cast Superaustenitic Stainless Steels,” Technical and Operating Conference, Steel Founders Society of America, Chicago, IL, Dec 14-16, 2006.

• L.S. Chumbley, D.J. Eisenmann*, A.E. Chumbley, T. Frizell*, T. Andre and C.P. Hargrave, The WebSEM in K-12 Classrooms: Lessons Learned, invited presentation, annual meeting MSA, Quebec City, Aug. 2002.
• L.S. Chumbley, Industry / University Interactions: Faculty Training, invited presentation, GAIN Workshop, Mannheim, Germany, Oct. 2002.
• E.J. Johnson*, Y-J Kim*, L.S. Chumbley, B. Gleeson, "Initial TTT Diagram Investigation of CD3MN Cast Duplex Stainless Steels", Invited Presentation, Proc. 56th T&O Conf., Steel Founders' Soc., Nov., 2002.
• L.S. Chumbley, "Remote Microscopy - Conception to Reality," invited presentation, UNLV, Physics Department seminar, Jan. 31, 2003.
• L.S. Chumbley, "Forensic Studies in Materials Science," invited presentation, Iowa Criminalistics Laboratory, Des Moines, Iowa, Feb. 12, 2003.
• L.S. Chumbley, L. Genalo, C. Bossard, "Characterization of Tool Marks," Midwest Forensics Resource Center, Ames, Iowa, June 5, 2003.
• L.S. Chumbley, Y-J. Kim, B. Gleeson, and E. Johnson, "Phase Transformation Diagrams for CD3MN and CD3MWCuN Duplex Stainless Steels," invited presentation, High Alloy Research Committee, Steel Founders Society of America, Rosemont, IL, Aug. 27, 2003.
• L.S. Chumbley, Y-J. Kim, B. Gleeson, and E. Johnson, "Transformation Diagrams for CD3MN and CD3MWCuN Duplex Stainless Steels," invited presentation, Technical and Operating Conference, Steel Founders Society of America, Chicago, IL, Nov. 6, 2003.
• L.S. Chumbley, C. Bossard*, L. Genalo, J. Kreiser, “Quantification of Toolmarks, “ annual meeting AAFS, Dallas, TX, 2004
  
• Y-J. Kim*, L.S. Chumbley, B. Gleeson, and E. Johnson, "Continuous Cooling Diagrams for CD3MN and CD3MWCuN Duplex Stainless Steels," Annual TMS meeting, Charlotte, NC, March, 2004.
• L.S. Chumbley, A.E. Chumbley, G. Casuccio, “The WebSEM: Inteactive, On-line Scanning Electron Microscopy for Education,” 18th BCCE, Ames, IA July 2004.
• Y-J. Kim*, C. Jiang, N. Phillips*, L.S. Chumbley, and B. Gleeson, "Thermodynamic Study of Cast Duplex Stainless Steels," poster presented, Technical and Operating Conference, Steel Founders Society of America, Chicago, IL, Nov. 5-6, 2004.
• Y-J. Kim*, L.S. Chumbley, B. Gleeson, and E. Johnson, "Transformation Diagrams for CD3MN and CD3MWCuN Duplex Stainless Steels," invited presentation, Technical and Operating Conference, Steel Founders Society of America, Chicago, IL, Nov. 5, 2004.
• L.S. Chumbley, A.E. Chumbley, G. Casuccio, H. Baron*, “Conducting, On-line, Inteactive, Scanning Electron Microscopy Lessons around the World,” MRS, Boston, MA, December, 2004.
• L.S. Chumbley, L. Genalo, M. Morris, C. Bossard*, M.J. Kreiser, D. Faden*, J. Kidd*, S. Davis*, C. Pfau*, I. Overton*, “Quantitative Characterization of Toolmarks for Comparative Identification,” Invited poster presentation, NIJ Showcase, AAFS, New Orleans, LA, Feb. 2005.
• L.S. Chumbley, A.E. Chumbley, “WebSEM: Interactive, Online Microscopy for Education,” Invited presentation, Minnesota Microscopy Society, MRS, Boston, MA, May, 2005.
• I.E. Anderson, E. Kalay*, L.S. Chumbley, R. Trivedi, “Rapid Solidification Microstructures in Aluminum-Silicon Gas Atomized Powder, MS&T. Pittsburgh, PA, Sep., 2005.
• L.S. Chumbley, N. Philips*, B. Gleeson, and E. Johnson, "Transformation Diagrams for Super-Austenitic Cast Alloys," Invited presentation, Technical and Operating Conference, Steel Founders Society of America, Chicago, IL, Nov. 3, 2005.
• O. Ugurlu*, L.S. Chumbley, T.A. Lograsso, D.L. Schlagel, “The Displacive-Diffusional Transformation of R5(Si, Ge)3 in R5(Si, Ge)4 Complex Alloys, where R is Gd, Tb, Dy and Er,” MRS, Boston, MA, December, 2005.
• A.E. Chumbley, L.S. Chumbley,, “WebSEM: Interactive, Online Microscopy for Education,” Invited presentation, MSA, Chicago, July, 2006.
• O. Ugurlu*, L.S. Chumbley, T.A. Lograsso and D.L. Schlagel “Orientation relationship and growth direction determination of Gd5Ge3 phase in Gd5Ge4 matrix” MSA, Chicago, July, 2006
• Y.E. Kalay, L.S. Chumbley, I.E. Anderson, R.E. Napolitano, “Crystallization and Amorphization Behavior of Al90Sm10 Alloy Solidified Far From Equilibrium”, TMS, San Antonio, Texas, March 2006.
• Y.E. Kalay, L.S. Chumbley, I.E. Anderson, “Characterization of Hypereutectic Al-Si Powders Solidified Far-From-Equilibrium”, TMS, San Antonio, Texas March, 2006.
• L.S. Chumbley, L. Genalo, M. Morris, J. Kidd, D. Faden. S Davis, “Quantification of Toolmarks”, Invited presentation, NIJ Workshop, Washington, D.C., May 2006.
• M. Morris, L.S. Chumbley, L. Genalo, , J. Kidd, D. Faden. S Davis, “Quantification of Toolmarks”, NIJ Grantees Meeting, Boston, MA, July 2006.
• N. Philips*, L.S. Chumbley, B. Gleeson, and O.Ugurlu, "Determination of Phase Transformations Cast Super-Austenitic Stainless Steels," Invited presentation, Technical and Operating Conference, Steel Founders Society of America, Chicago, IL, Dec. 15, 2006.
• L.S. Chumbley, J. Kidd*, J. Craft*, M. Morris, L. Genalo, J. Kreiser, “Quantitative Analysis of Toolmarks Using Stereoimaging ” invited presentation, Scanning 2007, April 10-12, Monterey, 2007.
• L.J. Genalo and L.S. Chumbley, “An Undergraduate Materials Recruitment and Outreach Program,”ASEE, June 2007.
• O. Ugurlu and L.S. Chumbley, "An Electron Microscope Study of Tweed Structure in GdNi Intermetallic Alloys, " Annual meeting TMS, Orlando, February, 2007.
• O. Ugurlu*, L.S. Chumbley and C. Fisher*, “Persistence of 5:3 Plates in RE5(SixGe1-x)4 Alloys,” Annual meeting TMS, Orlando, February, 2007.

• Nondestructive Detection of an Undesirable Metallic Phase, T1, During Processing of Aluminum-Lithium Alloys, ISURF #1144, O. Buck, D.C. Jiles, D.J. Bracci, L.S. Chumbley, J.E. Shield, L.J.M. Brasche, granted February 13, 1990.
• Method for Continuous Preparation of Spherical Forms of Carbon, ISURF #I1402, F.A. Schmidt, L.S. Chumbley, T.J. Barton, Disclosure filed January, 1991.
• High Strength, Lightweight Ti-Y composites and Method of Making Same, USSN 808,363 Patent No. 5,200,004, T.W. Ellis, L.S. Chumbley, J.D. Verhoeven, L.L. Jones, granted April 6, 1993.
• In-Situ Mg Metal-Metal Matrix Composite and Method of Making Same, US No. 08/325,899, ISU Case 343, submitted 1994.

• Edmond J. James Scholar
• Alpha Sigma Mu Metallurgical Honor Society
• ARCO Fellowship
• MSE Department Outstanding Teacher, 2002-2003
• MSE Department Outstanding Professor, E-week Festivities, 2003

• M.R. Kim, M.S., Spring 1989
• K. Breitbach, M.S., Fall 1991
• T. Holesinger, Ph.D., Fall 1992
• Russell, Ph.D., Spring 1995
• T. Voiles, M.S., Spring 1993
• J. Jensen, Ph.D., Summer 1997
• M. H. Mahmood, M.S., Fall 1994
• L. Carson, M.S., Summer 1997
• T. Lund, M.S., Fall 1997
• Y. Xu, M.S., Fall 1999
• Z. Shi, M.S., Fall 1999
• D. Hillman, M.S., Fall 2001
• E. Johnson, M.S., Summer 2002
• Morgan, M.S., Spring 2004
• G. Davis, M.S. Fall 2002
• J. Meyers, M.S. Spring 2002
• Y.J. Kim Ph.D. Spring 2004
• O. Ugurlu, Ph.D. Fall 2005
• J. Kidd, M.S. Spring 2006
• Nathaniel Phillips, M.S. Fall 2007
• Eisenmann, M.S. Fall 2008
• E. Kalay, Ph.D. Spring 2008
• Z. Qian, Ph.D. Spring 2009