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Larry E. McKnight
McKnight Laboratory, Inc.
Care of PhotoMetrics, Inc.
15801 Graham Street
Huntington Beach, CA 92649

Telephone: (714) 895-4465
Facsimile: (714) 893-4682
Cell: (562) 201-0148

Areas of Expertise

Metallurgical failure analysis; fractography; welding; corrosion; scanning electron microscopy; establishing materials in-process; sequences and manufacturing control; forensic analysis for litigation (over 500 depositions and 50 trial court appearances as expert witness).


B.S. (Metallurgical Engineering), University of Washington (1960)

Work Experience

1986 - present

Owner / President


McKnight Laboratory, Inc.


Santa Fe Springs, CA / Huntington Beach, CA



1979 - 1986

Partner / Owner (50%)




Santa Ana, CA



1975 - 1979



Materials Science Center


Newport Beach, CA



1967 - 1975

Chief Metallurgist


Testing Engineers


Los Angeles and San Diego, CA offices



1960 - 1967

Research Laboratory Engineer


Eagle Pitcher Corporation


Chicago Vitreous Division


Chicago, IL



1959 - 1960

Research Engineer


Boeing Airplane Company


Seattle, WA



1957 - 1959

Metallurgical and Corrosion Engineering Work


Corps of Engineers


Anchorage, AK

Teaching Experience

Orange Coast College – "Welding Inspection and Testing," 1970, American Welding Society
Chapman College – "Failure Analysis of Welds, 1973," American Welding Society
Don Bosco Tech – "Failure Analysis of Welded Structures," American Society for Metals
Cal Poly Pomona – Corrosion Seminar, 1979
Long Beach State College – "Failure Analysis"
American Society for Metals – "Metallurgy for Non-Metallurgists," 1981, 1982, 1983
American Society for Metals – "Fundamentals of Failure Analysis," 1993

Professional Memberships / Registrations
Registered Metallurgical Engineer, California No. MT1570
Registered Corrosion Engineer, California No. CR908
Past Chairman, American Society of Metals, Orange Coast Chapter
Chairman, WESTEC Technical Conference, 1977 - 1978
Fellow Selection Committee, ASM, 1977 - 1978
Member, ASM International
Member, American Welding Society 
Member, American Institute of Steel Construction
Member, National Association of Corrosion Engineers
"Who's Who in Engineering," American Association of Engineering Societies, Fifth Edition, 1982
Member, Independent Metallurgical Engineering Consultants of California
- Chairman, 1982 - 1983
Firm Membership, Consulting Engineers Association of California
University of Washington, Materials Science and Engineering Department, Industrial Advisory Board, 1992 - 1994
Board of Registration on Corrosion, State of California, 1995

Honors and Awards

Fellow, American Society of Metals (elected 1976)
Tau Beta Pi Engineering Honor Society


"Electrolytic Deburring of Metals," 1960, Boeing Company