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Author: thomas siewert

Displaying records 61 to 70 of 74 records.
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61. NIST Recommended Practice Guide: Installing, Maintaining, and Verifying Your Charpy Impact Machine
Series: Special Publication (NIST SP)
Report Number: 960-4
Published: 10/1/2000
Authors: D P Vigliotti, Thomas Allen Siewert, Christopher N McCowan
Abstract: The quality of the data developed by pendulum impact machines depends on how well the machines are installed, maintained, and verified. This is the reason that ASTM Standard E23 Standard Test Methods for Notched Bar Impact Testing of Metallic Materi ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=850044

62. Maintaining the Accuracy of Charpy Impact Machines
Published: 5/1/2000
Authors: D P Vigliotti, Thomas Allen Siewert, Christopher N McCowan
Abstract: The quality of the data developed by impact machines tends to degrade over time, due to the effects of weear and vibration that are inherent in the test. This is the reason that impact standards specify periodic direct and indirect verification test ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=851304

63. Ninth International Conference on Computer Technology in Welding, September 28-30, 1999, Detroit, MI
Series: Special Publication (NIST SP)
Report Number: 949
Published: 5/1/2000
Authors: Thomas Allen Siewert, C Pollock
Abstract: This is the proceedings of the ninth conference in this series. It was held September 28 to 30, 1999, in Detroit, MI, under the sponsorship of the American Welding Society, NIST, and The Welding Institute. There were 57 papers grouped into sessions o ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=851161

64. Secondary Ferrite Number Reference Materials: Gage Calibration and Assignment of Values
Series: Special Publication (NIST SP)
Report Number: 260-141
Published: 2/1/2000
Authors: Christopher N McCowan, Thomas Allen Siewert, D P Vigliotti, C M Wang
Abstract: Ferrite Numbers (FN) were assigned to blocks of stainless steel that serve as secondary ferrite reference materials (RM 8480 and 8481), and these specimens were placed in our Reference Materials inventory. These reference materials are used to calib ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=851156

65. Materials Science and Engineering Laboratory Materials Reliability: 1999 Programs and Accomplishments
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 6434
Published: 1/1/2000
Authors: F R. Fickett, Thomas Allen Siewert
Abstract: This document describes the 1999 Programs and Accomplishments of the Materials Reliability Division, Materials Science and Engineering Laboratory. The Materials Reliability Division addresses reliability issues across the full range of the national i ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=851141

66. Performance Verification of Impact Machines for Testing Plastics
Series: Journal of Research (NIST JRES)
Published: 12/1/1999
Authors: Thomas Allen Siewert, D P Vigliotti, L B Dirling, Christopher N McCowan
Abstract: Valid comparison of impact test energies reported by various organizations and over time depends on consistent performance of impact test machines. This paper investigates the influence of various specimen and test parameters on impact energies in t ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=851140

67. The International Standards System and NDE
Published: 12/1/1999
Author: Thomas Allen Siewert
Abstract: The globalization of manufacturing and construction markets is broadening the range of inspection standards that might be specified for a product, and we should prepare by learning more about the various organizations that develop such standards. Th ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=851214

68. Welding Consumable Development for a Cryogenic (4K) Application
Published: 8/1/1999
Authors: S F Kane, A L Farland, Thomas Allen Siewert, Christopher N McCowan
Abstract: This paper summarizes the development and qualification of an appropriate welding consumable for a demanding cryogenic magnet application. It begins with a review of the research conducted on cryogenic fracture toughness of wrought and welded austen ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=851288

69. The International Institute of Welding: Report on 1998 Actions
Published: 5/3/1999
Author: Thomas Allen Siewert
Abstract: Commission V covers issues of weld inspection and quality control for the International Institute of Welding (IIW). This report summarizes the information presented at the 1998 Annual Assembly: descriptions of both research and draft ISO standards b ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=851212

70. For 100 Years, Notched Bar Impact Testing Standards Have Yielded Widespread Benefits for Industry
Published: 2/1/1999
Authors: M P Manahan, Christopher N McCowan, Thomas Allen Siewert, J M Holt
Abstract: Without Standardization, the impact test has little meaning.
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=851151



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