Beta phase distribution in Al-Mg alloys of varying composition and temper

被引：19

作者：

McMahon, Matthew E. ^{[1
]}

Haines, Raewyn L. ^{[1
]}

Steiner, Patrick J. ^{[1
]}

Schulte, Justine M. ^{[1
]}

Fakler, Sarah E. ^{[1
]}

Burns, James T. ^{[1
]}

机构：

[1] Univ Virginia, Ctr Electrochem Sci & Engn, Dept Mat Sci & Engn, Charlottesville, VA 22901 USA

来源：

CORROSION SCIENCE | 2020年 / 169卷

关键词：

Al-Mg alloys; Beta phase; Sensitization; Intergranular stress corrosion cracking; Nitric acid mass loss test; Ammonium persulfate; Susceptibility; STRESS-CORROSION CRACKING; INTERGRANULAR CORROSION; GRAIN-BOUNDARY; ALUMINUM-ALLOY; PRECIPITATION; SENSITIZATION; ORIENTATION; MITIGATION; HYDROGEN;

D O I：

10.1016/j.corsci.2020.108618

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The ASTM G67 Nitric Acid Mass Loss Test (NAMLT) is not a universally accurate proxy for intergranular stress corrosion cracking (IG-SCC) susceptibility in Al-Mg alloys. This study aims to understand this discrepancy via an electron backscatter diffraction (EBSD) and ammonium persulfate etching/overlay analysis to characterize the linear grain boundary beta coverage (LGBBC). Testing at three NAMLT levels of AA5083-H131, AA5083-H116, AA5083-SHTQ, and AA5456-H116 derived from fracture specimens demonstrates that LGBBC is a more accurate metric to describe the IG-SCC susceptibility, however the correlation degrades for materials with divergent yield strengths. These results provide insights necessary to improve upon ASTM G67.

引用

页数：12

共 50 条

[1] The Effect of Temper and Composition on the Stress Corrosion Cracking of Al-Mg Alloys
McMahon, M. E.
Steiner, P. J.
Lass, A. B.
Burns, J. T.
[J]. CORROSION, 2017, 73 (04) : 347 - 361
[2] Precipitation of the β-phase in Al-Mg alloys
Inagaki, H
[J]. ZEITSCHRIFT FUR METALLKUNDE, 2005, 96 (01): : 45 - 53
[3] Influence of the Phase Composition of Al-Mg Alloys on the Propagation of Deformation Bands
Yuzbekova, Diana
Borisova, Yuliya
Mogucheva, Anna
[J]. PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS WITH HIERARCHICAL STRUCTURE FOR NEW TECHNOLOGIES AND RELIABLE STRUCTURES 2019, 2019, 2167
[4] THE COMPOSITION OF OXIDES FORMED ON AL-MG ALLOYS
WAKEFIELD, GR
SHARP, RM
[J]. APPLIED SURFACE SCIENCE, 1991, 51 (1-2) : 95 - 102
[5] STRUCTURAL ANALYSES OF BETA AND GAMMA ALLOYS OF AL-MG
TAKETOSHI, K
[J]. JAPANESE JOURNAL OF APPLIED PHYSICS, 1971, 10 (10) : 1311 - +
[6] PHASE CHANGES OF DISORDERED IN-MG AND AL-MG ALLOYS
KOGACHI, M
MATSUO, Y
[J]. JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 1971, 32 (10) : 2393 - &
[7] Interfacial control of β-phase precipitation in Al-Mg alloys
Yuan, Y.
Davenport, A. J.
Strangwood, M.
[J]. Solid-Solid Phase Transformations in Inorganic Materials 2005, Vol 1, 2005, : 377 - 382
[8] KINETIC REGULARITIES OF MG-DOPED AL-MG ALLOYS IN DISPERSE BETA-PHASE .2.
KULIKOV, AF
PSAREV, VI
[J]. IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENII FIZIKA, 1977, (12): : 52 - 57
[9] Grain growth and grain orientation distribution of Al-Mg alloys
Umakoshi, Y.
Matsumoto, K.
Shibayanagi, T.
Morisada, H.
[J]. Materials and Design, 1997, 18 (4-6): : 227 - 229
[10] Grain growth and grain orientation distribution of Al-Mg alloys
Umakoshi, Y
Matsumoto, K
Shibayanagi, T
Morisada, H
[J]. MATERIALS & DESIGN, 1997, 18 (4-6): : 227 - 229

← 1 2 3 4 5 →