study of microstructure and mechanical properties of low carbon steels by Barkhausen emission =: 利用巴克森發射效應硏究低碳鋼的顯微結構與力學持性.
by Cho, King-sum. === Thesis (M.Phil.)--Chinese University of Hong Kong, 1999. === Includes bibliographical references (leaves 108-110). === Text in English; abstracts in English and Chinese. === by Cho, King-sum. === Abstract --- p.i === 摘要 --- p.iii === Acknowledgment --- p.iv === Contents ---...
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1999
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Online Access: | http://library.cuhk.edu.hk/record=b5896344 http://repository.lib.cuhk.edu.hk/en/item/cuhk-322757 |
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Nondestructive testing Carbon steel--Mechanical properties Microstructure Ferromagnetism |
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Nondestructive testing Carbon steel--Mechanical properties Microstructure Ferromagnetism study of microstructure and mechanical properties of low carbon steels by Barkhausen emission =: 利用巴克森發射效應硏究低碳鋼的顯微結構與力學持性. |
description |
by Cho, King-sum. === Thesis (M.Phil.)--Chinese University of Hong Kong, 1999. === Includes bibliographical references (leaves 108-110). === Text in English; abstracts in English and Chinese. === by Cho, King-sum. === Abstract --- p.i === 摘要 --- p.iii === Acknowledgment --- p.iv === Contents --- p.v === List of figures --- p.x === Chapter 1 --- Introduction --- p.1 === Chapter 1.1 --- Review of non-destructive techniques --- p.2 === Chapter 1.1.1 --- Liquid penetration technique --- p.2 === Chapter 1.1.2 --- Eddy current inspection --- p.2 === Chapter 1.1.3 --- Ultrasonic testing --- p.3 === Chapter 1.1.4 --- Radiography --- p.3 === Chapter 1.1.5 --- Magnetic testing methods --- p.4 === Chapter 1.2 --- Barkhausen emission --- p.4 === Chapter 1.3 --- The development of Barkhausen Emission --- p.5 === Chapter 1.4 --- The advantages of using Barkhausen emission --- p.6 === Figures for chapter1 --- p.8 === Chapter 2 --- Iron-carbon System --- p.9 === Chapter 2.1 --- Iron-iron carbide phase diagram --- p.9 === Chapter 2.2 --- Invariant reactions in the Fe-Fe3C phase diagram --- p.11 === Chapter 2.3 --- Classification of carbon steels --- p.12 === Chapter 2.4 --- Effect of heat treatment on plain-carbon steels --- p.13 === Chapter 2.4.1 --- Annealing and normalizing --- p.14 === Chapter 2.4.2 --- Slow cooling --- p.15 === Chapter 2.5 --- Process of recovery and recrystallization --- p.15 === Chapter 2.5.1 --- Recovery --- p.16 === Chapter 2.5.2 --- Recrystallization --- p.16 === Chapter 2.5.3 --- Grain growth --- p.17 === Figures for chapter2 --- p.18 === Chapter 3 --- Background Theory --- p.23 === Chapter 3.1 --- Ferromagnetism --- p.23 === Chapter 3.1.1 --- Localized moment theory --- p.24 === Chapter 3.1.2 --- Band theory --- p.25 === Chapter 3.1.3 --- Hysteresis loop --- p.25 === Chapter 3.2 --- Domain theory --- p.26 === Chapter 3.2.1 --- Magnetic domain --- p.26 === Chapter 3.2.2 --- Structure of domain wall --- p.27 === Chapter 3.2.3 --- Domain wall motion --- p.29 === Chapter 3.2.4 --- Magnetostatic energy --- p.30 === Chapter 3.2.5 --- Magnetization process --- p.32 === Chapter 3.3 --- Effect of applied stress --- p.33 === Chapter 3.3.1 --- Stress --- p.33 === Chapter 3.3.2 --- Magnetostriction --- p.34 === Chapter 3.3.3 --- Effect of stress on magnetization --- p.34 === Figures for chapter 3 --- p.37 === Chapter 4 --- Instrumentation --- p.39 === Chapter 4.1 --- Introduction --- p.39 === Chapter 4.2 --- Experimental setup for Barkhausen emission --- p.39 === Chapter 4.2.1 --- Magnetizing unit --- p.40 === Chapter 4.2.2 --- Signal detection unit --- p.41 === Chapter 4.2.3 --- Signal processing unit --- p.42 === Chapter 4.3 --- The typical BE profile --- p.42 === Chapter 4.4 --- Specimen treatment --- p.43 === Chapter 4.4.1 --- Optical microscope --- p.43 === Chapter 4.4.2 --- Vickers´ة hardness tester --- p.44 === Chapter 4.4.3 --- Thermal resistance furnace --- p.45 === Chapter 4.4.4 --- Instron loading machine --- p.45 === Figures for chapter4 --- p.47 === Chapter 5 --- Experiments and Results: Evaluation of Carbon Content in Steel --- p.52 === Chapter 5.1 --- Introduction --- p.52 === Chapter 5.2 --- Experiments and results --- p.52 === Chapter 5.3 --- Discussions --- p.53 === Chapter 5.3.1 --- The magnetization process --- p.53 === Chapter 5.3.2 --- The BE profiles 、 --- p.54 === Chapter 5.3.3 --- Hardness --- p.57 === Chapter 5.4 --- Conclusions --- p.57 === Figures for chapter5 --- p.58 === Chapter 6 --- Experiments and Results: The Effects of annealing on Barkhausen Emission in Mild Steel Bars --- p.64 === Chapter 6.1 --- Introduction --- p.64 === Chapter 6.2 --- Experiments --- p.64 === Chapter 6.3 --- Results and discussions --- p.64 === Chapter 6.3.1 --- The mechanical properties --- p.65 === Chapter 6.3.2 --- Grain size --- p.65 === Chapter 6.3.3 --- BE profiles --- p.66 === Chapter 6.4 --- Conclusions --- p.67 === Figures for chapter6 --- p.68 === Chapter 7 --- Experiments and Results: The Effects of Dynamic and Residual Stresses on Barkhausen Emission in Annealed Mild Steel Bars --- p.76 === Chapter 7.1 --- Introduction --- p.76 === Chapter 7.2 --- Experiments --- p.76 === Chapter 7.2.1 --- Measurement of dynamic loading (with samples of Set A) --- p.77 === Chapter 7.2.2 --- Measurement of residual stress (with samples of Set B) --- p.77 === Chapter 7.2.3 --- Measurement of continuous tensile stress (with samples of Set C) --- p.77 === Chapter 7.3 --- Results and discussions --- p.78 === Chapter 7.3.1 --- Peak ratio of the BE profile --- p.78 === Chapter 7.3.2 --- The initial peak value under the effects of increasing tensile stress --- p.81 === Chapter 7.4 --- Conclusions --- p.82 === Figures for chapter7 --- p.83 === Chapter 8 --- Experiments and Results: The Recovery of Strained Steel Bars by Annealing --- p.94 === Chapter 8.1 --- Introduction --- p.94 === Chapter 8.2 --- Experiments --- p.94 === Chapter 8.2.1 --- Measurement of annealed sample (Set D) --- p.95 === Chapter 8.2.2 --- Results of the Set E samples --- p.95 === Chapter 8.3 --- Results and discussions --- p.95 === Chapter 8.3.1 --- Hardness --- p.96 === Chapter 8.3.2 --- Peak ratio of the BE profile --- p.97 === Chapter 8.3.3 --- BE profile for the samples of Set E --- p.98 === Chapter 8.4 --- Conclusions --- p.99 === Figures for chapter8 --- p.100 === Chapter 9 --- Conclusions and Suggestions for Further Studies --- p.104 === Bibliography --- p.108 |
author2 |
Cho, King-sum. |
author_facet |
Cho, King-sum. |
title |
study of microstructure and mechanical properties of low carbon steels by Barkhausen emission =: 利用巴克森發射效應硏究低碳鋼的顯微結構與力學持性. |
title_short |
study of microstructure and mechanical properties of low carbon steels by Barkhausen emission =: 利用巴克森發射效應硏究低碳鋼的顯微結構與力學持性. |
title_full |
study of microstructure and mechanical properties of low carbon steels by Barkhausen emission =: 利用巴克森發射效應硏究低碳鋼的顯微結構與力學持性. |
title_fullStr |
study of microstructure and mechanical properties of low carbon steels by Barkhausen emission =: 利用巴克森發射效應硏究低碳鋼的顯微結構與力學持性. |
title_full_unstemmed |
study of microstructure and mechanical properties of low carbon steels by Barkhausen emission =: 利用巴克森發射效應硏究低碳鋼的顯微結構與力學持性. |
title_sort |
study of microstructure and mechanical properties of low carbon steels by barkhausen emission =: 利用巴克森發射效應硏究低碳鋼的顯微結構與力學持性. |
publishDate |
1999 |
url |
http://library.cuhk.edu.hk/record=b5896344 http://repository.lib.cuhk.edu.hk/en/item/cuhk-322757 |
_version_ |
1718982518329311232 |
spelling |
ndltd-cuhk.edu.hk-oai-cuhk-dr-cuhk_3227572019-02-26T03:33:59Z study of microstructure and mechanical properties of low carbon steels by Barkhausen emission =: 利用巴克森發射效應硏究低碳鋼的顯微結構與力學持性. 利用巴克森發射效應硏究低碳鋼的顯微結構與力學持性 The study of microstructure and mechanical properties of low carbon steels by Barkhausen emission =: Li yong Bagesen fa she xiao ying yan jiu di tan gang de xian wei jie gou yu li xue chi xing. Li yong Bagesen fa she xiao ying yan jiu di tan gang de xian wei jie gou yu li xue chi xing Nondestructive testing Carbon steel--Mechanical properties Microstructure Ferromagnetism by Cho, King-sum. Thesis (M.Phil.)--Chinese University of Hong Kong, 1999. Includes bibliographical references (leaves 108-110). Text in English; abstracts in English and Chinese. by Cho, King-sum. Abstract --- p.i 摘要 --- p.iii Acknowledgment --- p.iv Contents --- p.v List of figures --- p.x Chapter 1 --- Introduction --- p.1 Chapter 1.1 --- Review of non-destructive techniques --- p.2 Chapter 1.1.1 --- Liquid penetration technique --- p.2 Chapter 1.1.2 --- Eddy current inspection --- p.2 Chapter 1.1.3 --- Ultrasonic testing --- p.3 Chapter 1.1.4 --- Radiography --- p.3 Chapter 1.1.5 --- Magnetic testing methods --- p.4 Chapter 1.2 --- Barkhausen emission --- p.4 Chapter 1.3 --- The development of Barkhausen Emission --- p.5 Chapter 1.4 --- The advantages of using Barkhausen emission --- p.6 Figures for chapter1 --- p.8 Chapter 2 --- Iron-carbon System --- p.9 Chapter 2.1 --- Iron-iron carbide phase diagram --- p.9 Chapter 2.2 --- Invariant reactions in the Fe-Fe3C phase diagram --- p.11 Chapter 2.3 --- Classification of carbon steels --- p.12 Chapter 2.4 --- Effect of heat treatment on plain-carbon steels --- p.13 Chapter 2.4.1 --- Annealing and normalizing --- p.14 Chapter 2.4.2 --- Slow cooling --- p.15 Chapter 2.5 --- Process of recovery and recrystallization --- p.15 Chapter 2.5.1 --- Recovery --- p.16 Chapter 2.5.2 --- Recrystallization --- p.16 Chapter 2.5.3 --- Grain growth --- p.17 Figures for chapter2 --- p.18 Chapter 3 --- Background Theory --- p.23 Chapter 3.1 --- Ferromagnetism --- p.23 Chapter 3.1.1 --- Localized moment theory --- p.24 Chapter 3.1.2 --- Band theory --- p.25 Chapter 3.1.3 --- Hysteresis loop --- p.25 Chapter 3.2 --- Domain theory --- p.26 Chapter 3.2.1 --- Magnetic domain --- p.26 Chapter 3.2.2 --- Structure of domain wall --- p.27 Chapter 3.2.3 --- Domain wall motion --- p.29 Chapter 3.2.4 --- Magnetostatic energy --- p.30 Chapter 3.2.5 --- Magnetization process --- p.32 Chapter 3.3 --- Effect of applied stress --- p.33 Chapter 3.3.1 --- Stress --- p.33 Chapter 3.3.2 --- Magnetostriction --- p.34 Chapter 3.3.3 --- Effect of stress on magnetization --- p.34 Figures for chapter 3 --- p.37 Chapter 4 --- Instrumentation --- p.39 Chapter 4.1 --- Introduction --- p.39 Chapter 4.2 --- Experimental setup for Barkhausen emission --- p.39 Chapter 4.2.1 --- Magnetizing unit --- p.40 Chapter 4.2.2 --- Signal detection unit --- p.41 Chapter 4.2.3 --- Signal processing unit --- p.42 Chapter 4.3 --- The typical BE profile --- p.42 Chapter 4.4 --- Specimen treatment --- p.43 Chapter 4.4.1 --- Optical microscope --- p.43 Chapter 4.4.2 --- Vickers´ة hardness tester --- p.44 Chapter 4.4.3 --- Thermal resistance furnace --- p.45 Chapter 4.4.4 --- Instron loading machine --- p.45 Figures for chapter4 --- p.47 Chapter 5 --- Experiments and Results: Evaluation of Carbon Content in Steel --- p.52 Chapter 5.1 --- Introduction --- p.52 Chapter 5.2 --- Experiments and results --- p.52 Chapter 5.3 --- Discussions --- p.53 Chapter 5.3.1 --- The magnetization process --- p.53 Chapter 5.3.2 --- The BE profiles 、 --- p.54 Chapter 5.3.3 --- Hardness --- p.57 Chapter 5.4 --- Conclusions --- p.57 Figures for chapter5 --- p.58 Chapter 6 --- Experiments and Results: The Effects of annealing on Barkhausen Emission in Mild Steel Bars --- p.64 Chapter 6.1 --- Introduction --- p.64 Chapter 6.2 --- Experiments --- p.64 Chapter 6.3 --- Results and discussions --- p.64 Chapter 6.3.1 --- The mechanical properties --- p.65 Chapter 6.3.2 --- Grain size --- p.65 Chapter 6.3.3 --- BE profiles --- p.66 Chapter 6.4 --- Conclusions --- p.67 Figures for chapter6 --- p.68 Chapter 7 --- Experiments and Results: The Effects of Dynamic and Residual Stresses on Barkhausen Emission in Annealed Mild Steel Bars --- p.76 Chapter 7.1 --- Introduction --- p.76 Chapter 7.2 --- Experiments --- p.76 Chapter 7.2.1 --- Measurement of dynamic loading (with samples of Set A) --- p.77 Chapter 7.2.2 --- Measurement of residual stress (with samples of Set B) --- p.77 Chapter 7.2.3 --- Measurement of continuous tensile stress (with samples of Set C) --- p.77 Chapter 7.3 --- Results and discussions --- p.78 Chapter 7.3.1 --- Peak ratio of the BE profile --- p.78 Chapter 7.3.2 --- The initial peak value under the effects of increasing tensile stress --- p.81 Chapter 7.4 --- Conclusions --- p.82 Figures for chapter7 --- p.83 Chapter 8 --- Experiments and Results: The Recovery of Strained Steel Bars by Annealing --- p.94 Chapter 8.1 --- Introduction --- p.94 Chapter 8.2 --- Experiments --- p.94 Chapter 8.2.1 --- Measurement of annealed sample (Set D) --- p.95 Chapter 8.2.2 --- Results of the Set E samples --- p.95 Chapter 8.3 --- Results and discussions --- p.95 Chapter 8.3.1 --- Hardness --- p.96 Chapter 8.3.2 --- Peak ratio of the BE profile --- p.97 Chapter 8.3.3 --- BE profile for the samples of Set E --- p.98 Chapter 8.4 --- Conclusions --- p.99 Figures for chapter8 --- p.100 Chapter 9 --- Conclusions and Suggestions for Further Studies --- p.104 Bibliography --- p.108 Cho, King-sum. Chinese University of Hong Kong Graduate School. Division of Physics. 1999 Text bibliography print xii, 110 leaves : ill. ; 30 cm. cuhk:322757 http://library.cuhk.edu.hk/record=b5896344 eng chi Use of this resource is governed by the terms and conditions of the Creative Commons “Attribution-NonCommercial-NoDerivatives 4.0 International” License (http://creativecommons.org/licenses/by-nc-nd/4.0/) http://repository.lib.cuhk.edu.hk/en/islandora/object/cuhk%3A322757/datastream/TN/view/The%20%20study%20of%20microstructure%20and%20mechanical%20properties%20of%20low%20carbon%20steels%20by%20Barkhausen%20emission%20%3D%20%3A%20%E5%88%A9%E7%94%A8%E5%B7%B4%E5%85%8B%E6%A3%AE%E7%99%BC%E5%B0%84%E6%95%88%E6%87%89%E7%A1%8F%E7%A9%B6%E4%BD%8E%E7%A2%B3%E9%8B%BC%E7%9A%84%E9%A1%AF%E5%BE%AE%E7%B5%90%E6%A7%8B%E8%88%87%E5%8A%9B%E5%AD%B8%E6%8C%81%E6%80%A7.jpghttp://repository.lib.cuhk.edu.hk/en/item/cuhk-322757 |