Characterization of shock-hardened Al-8090 alloy View Full Text


Ontology type: schema:ScholarlyArticle     


Article Info

DATE

1995-01

AUTHORS

R. Esquivel, O. T. Inal

ABSTRACT

The structure and mechanical properties of Al-Li8090 alloy, that was dynamically deformed and then age hardened, were studied as a function of the changes in the nature and amount of precipitates produced. A comparison was made between two groups of samples, one group that was solution heat treated (SHT) and quenched from 530°C before the dynamic deformation and the other group that was dynamically deformed in the as-received (AR) condition. The higher values for microhardness and ultimate tensile strength observed (138 and 140 VHN, and 405 and 458 MPa, respectively), subsequent to shock treatment (ST), have been attributed to the increase in dislocation density and grain-boundary precipitation produced due to shock deformation. Dislocations and grain boundaries were assumed to act as precipitation sites and an increase in dislocation density, due to ST, was expected to increase precipitation density of δ′(Al3Li), S(Al2CuMg), and T1(Al2CuLi) phases which, in turn, are expected to increase strength properties of the alloy. Differential scanning calorimetry showed that, for the species that precipitate below 180°C, δ′(Al3Li) and GP zones, an increase in the amount of deformation increased the precipitation temperatures. However, for the species that precipitate at 197°C, S(Al2CuMg), an increase in the amount of deformation produced a decrease in its precipitation temperature. These results have been partially confirmed by the activation energy calculations for temperatures below 197 °C, which show a decrease of precipitation energies with an increase in the amount of deformation. Activation energies calculated from ageing curves showed that when ageing at low temperature (165–180 °C range), activation energies for the precipitation process are decreased upon increase in cold work. Shock treatment of SHT samples exhibited decreased activation energy values of precipitation, from 36.14 kcal mol−1 for the SHT sample to 24.18, 24.08, and 21.00 kcal mol−1 for SHT + ST samples 1, 2, and 3, respectively (corresponding to 1, 2, and 3 sheets of explosive). Activation energies of precipitation for AR + ST samples showed even lower values; 9.45, 9.95, and 8.21 kcal mol−1 for samples 4, 5, and 6, respectively. These activation energies strongly corroborate the role of defect substructure on the age-hardening kinetics of this alloy. More... »

PAGES

5825-5832

References to SciGraph publications

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/bf00356728

DOI

http://dx.doi.org/10.1007/bf00356728

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1004313378


Indexing Status Check whether this publication has been indexed by Scopus and Web Of Science using the SN Indexing Status Tool
Incoming Citations Browse incoming citations for this publication using opencitations.net

JSON-LD is the canonical representation for SciGraph data.

TIP: You can open this SciGraph record using an external JSON-LD service: JSON-LD Playground Google SDTT

[
  {
    "@context": "https://springernature.github.io/scigraph/jsonld/sgcontext.json", 
    "about": [
      {
        "id": "http://purl.org/au-research/vocabulary/anzsrc-for/2008/0912", 
        "inDefinedTermSet": "http://purl.org/au-research/vocabulary/anzsrc-for/2008/", 
        "name": "Materials Engineering", 
        "type": "DefinedTerm"
      }, 
      {
        "id": "http://purl.org/au-research/vocabulary/anzsrc-for/2008/09", 
        "inDefinedTermSet": "http://purl.org/au-research/vocabulary/anzsrc-for/2008/", 
        "name": "Engineering", 
        "type": "DefinedTerm"
      }
    ], 
    "author": [
      {
        "affiliation": {
          "alternateName": "New Mexico Institute of Mining and Technology", 
          "id": "https://www.grid.ac/institutes/grid.39679.32", 
          "name": [
            "Materials and Metallurgical Engineering Department, New Mexico Institute of Mining and Technology, 87801, Socorro, NM, USA"
          ], 
          "type": "Organization"
        }, 
        "familyName": "Esquivel", 
        "givenName": "R.", 
        "type": "Person"
      }, 
      {
        "affiliation": {
          "alternateName": "New Mexico Institute of Mining and Technology", 
          "id": "https://www.grid.ac/institutes/grid.39679.32", 
          "name": [
            "Materials and Metallurgical Engineering Department, New Mexico Institute of Mining and Technology, 87801, Socorro, NM, USA"
          ], 
          "type": "Organization"
        }, 
        "familyName": "Inal", 
        "givenName": "O. T.", 
        "id": "sg:person.014050246457.04", 
        "sameAs": [
          "https://app.dimensions.ai/discover/publication?and_facet_researcher=ur.014050246457.04"
        ], 
        "type": "Person"
      }
    ], 
    "citation": [
      {
        "id": "sg:pub.10.1007/bf03339468", 
        "sameAs": [
          "https://app.dimensions.ai/details/publication/pub.1048145514", 
          "https://doi.org/10.1007/bf03339468"
        ], 
        "type": "CreativeWork"
      }
    ], 
    "datePublished": "1995-01", 
    "datePublishedReg": "1995-01-01", 
    "description": "The structure and mechanical properties of Al-Li8090 alloy, that was dynamically deformed and then age hardened, were studied as a function of the changes in the nature and amount of precipitates produced. A comparison was made between two groups of samples, one group that was solution heat treated (SHT) and quenched from 530\u00b0C before the dynamic deformation and the other group that was dynamically deformed in the as-received (AR) condition. The higher values for microhardness and ultimate tensile strength observed (138 and 140 VHN, and 405 and 458 MPa, respectively), subsequent to shock treatment (ST), have been attributed to the increase in dislocation density and grain-boundary precipitation produced due to shock deformation. Dislocations and grain boundaries were assumed to act as precipitation sites and an increase in dislocation density, due to ST, was expected to increase precipitation density of \u03b4\u2032(Al3Li), S(Al2CuMg), and T1(Al2CuLi) phases which, in turn, are expected to increase strength properties of the alloy. Differential scanning calorimetry showed that, for the species that precipitate below 180\u00b0C, \u03b4\u2032(Al3Li) and GP zones, an increase in the amount of deformation increased the precipitation temperatures. However, for the species that precipitate at 197\u00b0C, S(Al2CuMg), an increase in the amount of deformation produced a decrease in its precipitation temperature. These results have been partially confirmed by the activation energy calculations for temperatures below 197 \u00b0C, which show a decrease of precipitation energies with an increase in the amount of deformation. Activation energies calculated from ageing curves showed that when ageing at low temperature (165\u2013180 \u00b0C range), activation energies for the precipitation process are decreased upon increase in cold work. Shock treatment of SHT samples exhibited decreased activation energy values of precipitation, from 36.14 kcal mol\u22121 for the SHT sample to 24.18, 24.08, and 21.00 kcal mol\u22121 for SHT + ST samples 1, 2, and 3, respectively (corresponding to 1, 2, and 3 sheets of explosive). Activation energies of precipitation for AR + ST samples showed even lower values; 9.45, 9.95, and 8.21 kcal mol\u22121 for samples 4, 5, and 6, respectively. These activation energies strongly corroborate the role of defect substructure on the age-hardening kinetics of this alloy.", 
    "genre": "research_article", 
    "id": "sg:pub.10.1007/bf00356728", 
    "inLanguage": [
      "en"
    ], 
    "isAccessibleForFree": false, 
    "isPartOf": [
      {
        "id": "sg:journal.1312116", 
        "issn": [
          "0022-2461", 
          "1573-4811"
        ], 
        "name": "Journal of Materials Science", 
        "type": "Periodical"
      }, 
      {
        "issueNumber": "22", 
        "type": "PublicationIssue"
      }, 
      {
        "type": "PublicationVolume", 
        "volumeNumber": "30"
      }
    ], 
    "name": "Characterization of shock-hardened Al-8090 alloy", 
    "pagination": "5825-5832", 
    "productId": [
      {
        "name": "doi", 
        "type": "PropertyValue", 
        "value": [
          "10.1007/bf00356728"
        ]
      }, 
      {
        "name": "readcube_id", 
        "type": "PropertyValue", 
        "value": [
          "148d65d4eaf58b65df7ef6d54a3e0d575618398a4d5722f2cbd728639eba687c"
        ]
      }, 
      {
        "name": "dimensions_id", 
        "type": "PropertyValue", 
        "value": [
          "pub.1004313378"
        ]
      }
    ], 
    "sameAs": [
      "https://doi.org/10.1007/bf00356728", 
      "https://app.dimensions.ai/details/publication/pub.1004313378"
    ], 
    "sdDataset": "articles", 
    "sdDatePublished": "2019-04-15T08:48", 
    "sdLicense": "https://scigraph.springernature.com/explorer/license/", 
    "sdPublisher": {
      "name": "Springer Nature - SN SciGraph project", 
      "type": "Organization"
    }, 
    "sdSource": "s3://com-uberresearch-data-dimensions-target-20181106-alternative/cleanup/v134/2549eaecd7973599484d7c17b260dba0a4ecb94b/merge/v9/a6c9fde33151104705d4d7ff012ea9563521a3ce/jats-lookup/v90/0000000374_0000000374/records_119720_00000000.jsonl", 
    "type": "ScholarlyArticle", 
    "url": "http://link.springer.com/10.1007/BF00356728"
  }
]
 

Download the RDF metadata as:  json-ld nt turtle xml License info

HOW TO GET THIS DATA PROGRAMMATICALLY:

JSON-LD is a popular format for linked data which is fully compatible with JSON.

curl -H 'Accept: application/ld+json' 'https://scigraph.springernature.com/pub.10.1007/bf00356728'

N-Triples is a line-based linked data format ideal for batch operations.

curl -H 'Accept: application/n-triples' 'https://scigraph.springernature.com/pub.10.1007/bf00356728'

Turtle is a human-readable linked data format.

curl -H 'Accept: text/turtle' 'https://scigraph.springernature.com/pub.10.1007/bf00356728'

RDF/XML is a standard XML format for linked data.

curl -H 'Accept: application/rdf+xml' 'https://scigraph.springernature.com/pub.10.1007/bf00356728'


 

This table displays all metadata directly associated to this object as RDF triples.

71 TRIPLES      21 PREDICATES      28 URIs      19 LITERALS      7 BLANK NODES

Subject Predicate Object
1 sg:pub.10.1007/bf00356728 schema:about anzsrc-for:09
2 anzsrc-for:0912
3 schema:author Nd6dea6425285415a820741c57e23adc4
4 schema:citation sg:pub.10.1007/bf03339468
5 schema:datePublished 1995-01
6 schema:datePublishedReg 1995-01-01
7 schema:description The structure and mechanical properties of Al-Li8090 alloy, that was dynamically deformed and then age hardened, were studied as a function of the changes in the nature and amount of precipitates produced. A comparison was made between two groups of samples, one group that was solution heat treated (SHT) and quenched from 530°C before the dynamic deformation and the other group that was dynamically deformed in the as-received (AR) condition. The higher values for microhardness and ultimate tensile strength observed (138 and 140 VHN, and 405 and 458 MPa, respectively), subsequent to shock treatment (ST), have been attributed to the increase in dislocation density and grain-boundary precipitation produced due to shock deformation. Dislocations and grain boundaries were assumed to act as precipitation sites and an increase in dislocation density, due to ST, was expected to increase precipitation density of δ′(Al3Li), S(Al2CuMg), and T1(Al2CuLi) phases which, in turn, are expected to increase strength properties of the alloy. Differential scanning calorimetry showed that, for the species that precipitate below 180°C, δ′(Al3Li) and GP zones, an increase in the amount of deformation increased the precipitation temperatures. However, for the species that precipitate at 197°C, S(Al2CuMg), an increase in the amount of deformation produced a decrease in its precipitation temperature. These results have been partially confirmed by the activation energy calculations for temperatures below 197 °C, which show a decrease of precipitation energies with an increase in the amount of deformation. Activation energies calculated from ageing curves showed that when ageing at low temperature (165–180 °C range), activation energies for the precipitation process are decreased upon increase in cold work. Shock treatment of SHT samples exhibited decreased activation energy values of precipitation, from 36.14 kcal mol−1 for the SHT sample to 24.18, 24.08, and 21.00 kcal mol−1 for SHT + ST samples 1, 2, and 3, respectively (corresponding to 1, 2, and 3 sheets of explosive). Activation energies of precipitation for AR + ST samples showed even lower values; 9.45, 9.95, and 8.21 kcal mol−1 for samples 4, 5, and 6, respectively. These activation energies strongly corroborate the role of defect substructure on the age-hardening kinetics of this alloy.
8 schema:genre research_article
9 schema:inLanguage en
10 schema:isAccessibleForFree false
11 schema:isPartOf N56747f52dae54a1d894bd9abae930512
12 N74f91c5e71804d1ab47f1e154c33e41e
13 sg:journal.1312116
14 schema:name Characterization of shock-hardened Al-8090 alloy
15 schema:pagination 5825-5832
16 schema:productId Nc5f77ed0117d4bd8aa4bfb9c36565d55
17 Ne16368cf738d44498136b1baaef70cd0
18 Ne5df6784343646d9b152475666e15cad
19 schema:sameAs https://app.dimensions.ai/details/publication/pub.1004313378
20 https://doi.org/10.1007/bf00356728
21 schema:sdDatePublished 2019-04-15T08:48
22 schema:sdLicense https://scigraph.springernature.com/explorer/license/
23 schema:sdPublisher N32227b8d01604ce88b2640785c330cac
24 schema:url http://link.springer.com/10.1007/BF00356728
25 sgo:license sg:explorer/license/
26 sgo:sdDataset articles
27 rdf:type schema:ScholarlyArticle
28 N25136e89b9204959b383bad287b517f4 schema:affiliation https://www.grid.ac/institutes/grid.39679.32
29 schema:familyName Esquivel
30 schema:givenName R.
31 rdf:type schema:Person
32 N320c08badcc84818855e63f2da551ba1 rdf:first sg:person.014050246457.04
33 rdf:rest rdf:nil
34 N32227b8d01604ce88b2640785c330cac schema:name Springer Nature - SN SciGraph project
35 rdf:type schema:Organization
36 N56747f52dae54a1d894bd9abae930512 schema:issueNumber 22
37 rdf:type schema:PublicationIssue
38 N74f91c5e71804d1ab47f1e154c33e41e schema:volumeNumber 30
39 rdf:type schema:PublicationVolume
40 Nc5f77ed0117d4bd8aa4bfb9c36565d55 schema:name readcube_id
41 schema:value 148d65d4eaf58b65df7ef6d54a3e0d575618398a4d5722f2cbd728639eba687c
42 rdf:type schema:PropertyValue
43 Nd6dea6425285415a820741c57e23adc4 rdf:first N25136e89b9204959b383bad287b517f4
44 rdf:rest N320c08badcc84818855e63f2da551ba1
45 Ne16368cf738d44498136b1baaef70cd0 schema:name dimensions_id
46 schema:value pub.1004313378
47 rdf:type schema:PropertyValue
48 Ne5df6784343646d9b152475666e15cad schema:name doi
49 schema:value 10.1007/bf00356728
50 rdf:type schema:PropertyValue
51 anzsrc-for:09 schema:inDefinedTermSet anzsrc-for:
52 schema:name Engineering
53 rdf:type schema:DefinedTerm
54 anzsrc-for:0912 schema:inDefinedTermSet anzsrc-for:
55 schema:name Materials Engineering
56 rdf:type schema:DefinedTerm
57 sg:journal.1312116 schema:issn 0022-2461
58 1573-4811
59 schema:name Journal of Materials Science
60 rdf:type schema:Periodical
61 sg:person.014050246457.04 schema:affiliation https://www.grid.ac/institutes/grid.39679.32
62 schema:familyName Inal
63 schema:givenName O. T.
64 schema:sameAs https://app.dimensions.ai/discover/publication?and_facet_researcher=ur.014050246457.04
65 rdf:type schema:Person
66 sg:pub.10.1007/bf03339468 schema:sameAs https://app.dimensions.ai/details/publication/pub.1048145514
67 https://doi.org/10.1007/bf03339468
68 rdf:type schema:CreativeWork
69 https://www.grid.ac/institutes/grid.39679.32 schema:alternateName New Mexico Institute of Mining and Technology
70 schema:name Materials and Metallurgical Engineering Department, New Mexico Institute of Mining and Technology, 87801, Socorro, NM, USA
71 rdf:type schema:Organization
 




Preview window. Press ESC to close (or click here)


...