Microstructure-property relationship in microalloyed high-strength steel welds:
Gespeichert in:
| 1. Verfasser: | |
|---|---|
| Format: | Abschlussarbeit Buch |
| Sprache: | English |
| Veröffentlicht: |
Berlin
Bundesanstalt für Materialforschung und -prüfung (BAM)
2017
|
| Ausgabe: | 1. Auflage |
| Schriftenreihe: | BAM-Dissertationsreihe
155 |
| Schlagworte: | |
| Online-Zugang: | Inhaltsverzeichnis |
| Beschreibung: | xiii, 169 Seiten Illustrationen, Diagramme 23.5 cm x 16.5 cm, 309 g |
| ISBN: | 9783981827040 398182704X |
Internformat
MARC
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| 100 | 1 | |a Zhang, Lei |d 1986- |e Verfasser |0 (DE-588)1127587323 |4 aut | |
| 245 | 1 | 0 | |a Microstructure-property relationship in microalloyed high-strength steel welds |c Lei Zhang |
| 250 | |a 1. Auflage | ||
| 264 | 1 | |a Berlin |b Bundesanstalt für Materialforschung und -prüfung (BAM) |c 2017 | |
| 300 | |a xiii, 169 Seiten |b Illustrationen, Diagramme |c 23.5 cm x 16.5 cm, 309 g | ||
| 336 | |b txt |2 rdacontent | ||
| 337 | |b n |2 rdamedia | ||
| 338 | |b nc |2 rdacarrier | ||
| 490 | 1 | |a BAM-Dissertationsreihe |v 155 | |
| 502 | |b Dissertation |c Otto-von-Guericke-Universität Magdeburg |d 2017 | ||
| 650 | 0 | 7 | |a Schmelzschweißen |0 (DE-588)4139557-8 |2 gnd |9 rswk-swf |
| 650 | 0 | 7 | |a Hochfester Stahl |0 (DE-588)4139671-6 |2 gnd |9 rswk-swf |
| 653 | |a HAZ softening | ||
| 653 | |a mechnical properties | ||
| 653 | |a microalloyed steel | ||
| 653 | |a weld microstructure | ||
| 655 | 7 | |0 (DE-588)4113937-9 |a Hochschulschrift |2 gnd-content | |
| 689 | 0 | 0 | |a Hochfester Stahl |0 (DE-588)4139671-6 |D s |
| 689 | 0 | 1 | |a Schmelzschweißen |0 (DE-588)4139557-8 |D s |
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| 999 | |a oai:aleph.bib-bvb.de:BVB01-029705510 | ||
Datensatz im Suchindex
| _version_ | 1804177507240378368 |
|---|---|
| adam_text | CONTENTS
1 INTRODUCTION
............................................................................................................................
1
2 LITERATURE
REVIEW......................................................................................................................
3
2.1 HIGH-STRENGTH STRUCTURAL STEELS
..............................................................................................
3
2.1.1 DEVELOPMENT OF HIGH-STRENGTH S TE E LS
.......................................................................
3
2.1.2 METALLURGICAL APPROACHES ON QT S TE E LS
.................................................................... 4
2.1.3 STANDARDS, GUIDELINES AND P RO D U
CTS...........................................................................
7
2.1.4 CARBON EQUIVALENT WITH RESPECT TO W E LD A B ILITY
.......................................................
13
2.2 MODERN GMAW
PROCESSES........................................................................................................
16
2.3 WELD M E TA LLU RG
Y........................................................................................................................
18
2.3.1 BACKGROUND ON WELD MICROSTRUCTURE
.......................................................................
20
2.3.2 COMPOSITIONAL E FFE C TS
.................................................................................................
31
2.4 PROPERTIES OF THE HEAT AFFECTED ZONE (HAZ)
.......................................................................
36
2.4.1 HYDROGEN-ASSISTED COLD C R A C K IN G
..............................................................................
36
2.4.2 AUSTENITE GRAIN G R O W T H
..............................................................................................37
2.4.3 HAZ TO U G H N E S S
...........................................................................................................46
2.4.4 HAZ
SOFTENING..............................................................................................................
49
3 SUMMARY OF LITERATURE AND OBJECTIVES
............
.....................................................................53
3.1 SUMMARY OF LITE RA TU RE
..............................................................................................................
53
3.2 OBJECTIVES OF THE PRESENT S TU D Y
..............................................................................................
54
4 EXPERIMENTAL
PROCEDURE.............................................................................................................
57
4.1 BASE M
ATERIALS...........................................................................................................................
57
4.2 FILLER M E TA L
.............................
....................................................................................................
57
4.3 WELDING EXPERIMENTS
..............................................................................................................
57
4.4 PRINCIPLES OF CHARACTERISATION M E TH O D S
.................................................................................59
4.4.1 LIGHT OPTICAL MICROSCOPY
...........................................................................................59
4.4.2 SCANNING ELECTRON
MICROSCOPY....................................................................................
59
4.4.3 ENERGY DISPERSIVE X-RAY
SPECTROSCOPY.......................................................................
61
4.4.4 ELECTRON BACKSCATTER D IFFRA C TIO N
.................................................................................62
4.4.5 FOCUSED ION BEAM TE C H N IQ U E
....................................................................................
62
4.4.6 TRANSMISSION ELECTRON
MICROSCOPY..............................................................................63
4.5 MECHANICAL TE STIN G
....................................................................................................................
64
4.5.1
HARDNESS........................................................................................................................64
4.5.2 TENSILE TEST
.................................................................................................................
64
4.5.3 CHARPY IMPACT T E S T
....................................................................................................
65
4.6 PHYSICAL SIMULATION OF HEAT AFFECTED ZON
E...............................................................................
65
4.6.1 AUSTENITE GRAIN GROWTH SIMULATION
..........................................................................
65
4.6.2 D ILA TO M E TRY
.................................................................................................................
65
4.7 THERMODYNAMIC PREDICTION OF PHASE STA B ILITY
.........................................................................66
5 MICROSTRUCTURE CHARACTERISATION AND MECHANICAL PROPERTIES OF BASE
MATERIAL
.................
67
5.1 MICROSTRUCTURE OF BASE M A TE RIA LS
..........................................................................................67
5.2 MICROALLOY
CARBONITRIDES............................................................................................................
69
5.2.1 PREDICTION BY THERMODYNAMIC
CALCULATION......................................................................69
5.2.2 MICROALLOY PRECIPITATES UNDER OPTICAL M ICROSCOPY
........................................................
73
5.3 MECHANICAL P RO PE
RTIES...................................................................................................................
74
5.3.1 TENSILE P RO P E RTIE S
.............................................................................................................74
5.3.2 CHARPY V-NOTCH TO U G H N E S S
............................................................................................
75
5.4 D
ISCUSSION.......................................................................................................................................76
5.4.1 MICROALLOY PRECIPITATES
...................................................................................................76
5.4.2 RELATIONSHIP BETWEEN MICROSTRUCTURE AND MECHANICAL PROPERTIES
................................
77
5.5 SUM M
ARY..........................................................................................................................................
78
6 MICROSTRUCTURE EVOLUTION AND MECHANICAL PROPERTIES OF WELD M E TA LS
...........................
79
6.1 HARDNESS RE S U LTS
.............................................................................................................................79
6.2 MICROSTRUCTURE
CHARACTERISATION...................................................................................................80
6.3 TOUGHNESS RESULTS OF WELD M E TA LS
................................................................................................84
6.4 D ISCUSSION
................................................
88
6.4.1 EFFECT OF MICROSTRUCTURE ON TO U G H N E S S
.........................................................................88
6.4.2 TRANSITION BETWEEN ACICULAR FERRITE AND B A IN ITE
............................................................88
6.5 SUM M ARY.................... 90
7 MICROSTRUCTURE EVOLUTION AND MECHANICAL PROPERTIES OF CGHAZ AND F G H
A Z
............
91
7.1 MICROSTRUCTURE CHARACTERISATION
.............................................
91
7.2 EBSD
ANALYSIS.............................................................................................................................
94
7.3 AUSTENITE GRAIN GROWTH SIMULATION
............................................................................................
98
7.3.1 AUSTENITE GRAIN GROWTH B E H A VIO U RS
...............................................................................
98
7.3.2 MICROSTRUCTURE OF SIMULATED H A Z S
...............................................................................
99
7.3.3 HARDNESS OF SIMULATED H A Z S
.......................................................................................
103
7.4 IDENTIFICATION OF MICROALLOY PRECIPITATES BY T E M
....................................................................105
7.5 HAZ TOUGHNESS RESULTS
..............................................................................................................
108
7.6 D
ISCUSSION.....................................................................................................................................110
7.6.1 EFFECT OF MICROALLOY PRECIPITATES ON AUSTENITE GRAIN GROWTH
.....................................110
7.6.2 EFFECT OF MICROALLOY ADDITION ON PHASE TRANSFO RM A
TION.............................................I L L
7.6.3 EFFECT OF CRYSTALLOGRAPHIC ORIENTATION ON FRACTURE TOUGHNESS
...................................
113
7.6.4 EFFECT OF HAZ MICROSTRUCTURE ON TO U G H N E S S
............................................................. 113
7.7 SUM M
ARY........................................................................................................................................
115
8 MICROSTRUCTURE EVOLUTION AND MECHANICAL PROPERTIES OF SOFTENED H A Z
........................
117
8.1 TENSILE P RO P E RTIE S
........................................................................................................................117
8.2 HAZ SOFTENING IN THE WELDED JO IN T S
........................................................................................
118
8.3 D ILA TO M E TRY
..................................................................................................................................121
8.3.1 HARDNESS OF SOFTENED H A Z S
..........................................................................................
122
8.3.2 PHASE TRANSFORMATION
ANALYSIS.......................................................................................
122
8.3.3 MICROSTRUCTURE OF THE SOFTENED H A Z S
..........................................................................
127
8.4 D
ISCUSSION.....................................................................................................................................133
8.4.1 EFFECT OF SOFTENING ON TENSILE PROPERTIES
....................................................................133
XII
BAM-DISSERTATIONSREIHE
8.4.2 SOFTENING
MECHANISMS....................................................................................................
134
8.5 SUM M
ARY.......................................................................................................................................
138
9 GENERAL CONCLUSIONS AND FUTURE
WORKS....................................................................................
141
9.1 FUTURE W O
RKS.................................................................................................................................143
REFERENCES......................................................................................................................................
145
LIST OF
TABLES...................................................................................................................................
158
LIST OF F
IGURES................................................................................................................................
161
N OM
ENCLATURE................................................................................................
165
|
| any_adam_object | 1 |
| author | Zhang, Lei 1986- |
| author_GND | (DE-588)1127587323 |
| author_facet | Zhang, Lei 1986- |
| author_role | aut |
| author_sort | Zhang, Lei 1986- |
| author_variant | l z lz |
| building | Verbundindex |
| bvnumber | BV044301653 |
| classification_rvk | ZM 4550 |
| ctrlnum | (OCoLC)974934731 (DE-599)DNB1126589039 |
| dewey-full | 620 |
| dewey-hundreds | 600 - Technology (Applied sciences) |
| dewey-ones | 620 - Engineering and allied operations |
| dewey-raw | 620 |
| dewey-search | 620 |
| dewey-sort | 3620 |
| dewey-tens | 620 - Engineering and allied operations |
| discipline | Maschinenbau / Maschinenwesen Werkstoffwissenschaften / Fertigungstechnik |
| edition | 1. Auflage |
| format | Thesis Book |
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| id | DE-604.BV044301653 |
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| indexdate | 2024-07-10T07:49:10Z |
| institution | BVB |
| institution_GND | (DE-588)2118472-0 |
| isbn | 9783981827040 398182704X |
| language | English |
| oai_aleph_id | oai:aleph.bib-bvb.de:BVB01-029705510 |
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| physical | xiii, 169 Seiten Illustrationen, Diagramme 23.5 cm x 16.5 cm, 309 g |
| publishDate | 2017 |
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| spelling | Zhang, Lei 1986- Verfasser (DE-588)1127587323 aut Microstructure-property relationship in microalloyed high-strength steel welds Lei Zhang 1. Auflage Berlin Bundesanstalt für Materialforschung und -prüfung (BAM) 2017 xiii, 169 Seiten Illustrationen, Diagramme 23.5 cm x 16.5 cm, 309 g txt rdacontent n rdamedia nc rdacarrier BAM-Dissertationsreihe 155 Dissertation Otto-von-Guericke-Universität Magdeburg 2017 Schmelzschweißen (DE-588)4139557-8 gnd rswk-swf Hochfester Stahl (DE-588)4139671-6 gnd rswk-swf HAZ softening mechnical properties microalloyed steel weld microstructure (DE-588)4113937-9 Hochschulschrift gnd-content Hochfester Stahl (DE-588)4139671-6 s Schmelzschweißen (DE-588)4139557-8 s DE-604 Bundesanstalt für Materialforschung und -prüfung (DE-588)2118472-0 pbl BAM-Dissertationsreihe 155 (DE-604)BV019539588 155 DNB Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=029705510&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
| spellingShingle | Zhang, Lei 1986- Microstructure-property relationship in microalloyed high-strength steel welds BAM-Dissertationsreihe Schmelzschweißen (DE-588)4139557-8 gnd Hochfester Stahl (DE-588)4139671-6 gnd |
| subject_GND | (DE-588)4139557-8 (DE-588)4139671-6 (DE-588)4113937-9 |
| title | Microstructure-property relationship in microalloyed high-strength steel welds |
| title_auth | Microstructure-property relationship in microalloyed high-strength steel welds |
| title_exact_search | Microstructure-property relationship in microalloyed high-strength steel welds |
| title_full | Microstructure-property relationship in microalloyed high-strength steel welds Lei Zhang |
| title_fullStr | Microstructure-property relationship in microalloyed high-strength steel welds Lei Zhang |
| title_full_unstemmed | Microstructure-property relationship in microalloyed high-strength steel welds Lei Zhang |
| title_short | Microstructure-property relationship in microalloyed high-strength steel welds |
| title_sort | microstructure property relationship in microalloyed high strength steel welds |
| topic | Schmelzschweißen (DE-588)4139557-8 gnd Hochfester Stahl (DE-588)4139671-6 gnd |
| topic_facet | Schmelzschweißen Hochfester Stahl Hochschulschrift |
| url | http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=029705510&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA |
| volume_link | (DE-604)BV019539588 |
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