---
_id: '11359'
abstract:
- lang: eng
  text: The reliability and lifetime of electrical contacts is an important aspect
    in system reliability and is influenced by numerous factors. Micro motions as
    well as vibrations lead to fretting wear, which can result in wear through of
    the protective coating. If this layer is worn through, the non-noble layer underneath
    is exposed, resulting in the occurrence of fretting corrosion with further relative
    motion. This leads to an increased electrical contact resistance (ECR) and can
    cause the contact to fail. Increasing the hardness of the coating material can
    reduce the wear and in turn increase contacts’ lifetime. The micro hardness, wear
    and lifetime of contacts with modified hard silver coatings are investigated in
    fretting wear and corrosion tests and the results compared to a conventional silver
    coating. Since one of the modifications shows a significant reduction in wear
    and hence improvement in lifetime, further analysis with SEM and FIB is conducted
    in order to identify the key mechanisms leading to this improvement. With a further
    increase in lifetime however, fatigue as well as delamination of the coating are
    revealed to be of high relevance. Both can be main causes of electrical contact
    failure under fretting load. In general, at lower number of cycles, increased
    micro hardness has the greatest effect on lifetime and wear while at the higher
    number of cycles, fatigue is observed to be the dominant failure mechanism.
author:
- first_name: Roman
  full_name: Probst, Roman
  id: '69156'
  last_name: Probst
- first_name: Jian
  full_name: Song, Jian
  id: '5297'
  last_name: Song
citation:
  ama: Probst R, Song J. <i>Influence of Hardness and Fatigue on the Lifetime of a
    Modified Silver Coating in Fretting Wear and Corrosion Tests</i>. IEEE; 2023:88-94.
    doi:<a href="https://doi.org/10.1109/holm56075.2023.10352299">10.1109/holm56075.2023.10352299</a>
  apa: Probst, R., &#38; Song, J. (2023). Influence of Hardness and Fatigue on the
    Lifetime of a Modified Silver Coating in Fretting Wear and Corrosion Tests. In
    <i>2023 IEEE 68th Holm Conference on Electrical Contacts (HOLM)</i> (pp. 88–94).
    IEEE. <a href="https://doi.org/10.1109/holm56075.2023.10352299">https://doi.org/10.1109/holm56075.2023.10352299</a>
  bjps: '<b>Probst R and Song J</b> (2023) <i>Influence of Hardness and Fatigue on
    the Lifetime of a Modified Silver Coating in Fretting Wear and Corrosion Tests</i>.
    [Piscataway, NJ]: IEEE.'
  chicago: 'Probst, Roman, and Jian Song. <i>Influence of Hardness and Fatigue on
    the Lifetime of a Modified Silver Coating in Fretting Wear and Corrosion Tests</i>.
    <i>2023 IEEE 68th Holm Conference on Electrical Contacts (HOLM)</i>. Electrical
    Contacts-IEEE Holm Conference on Electrical Contacts. [Piscataway, NJ]: IEEE,
    2023. <a href="https://doi.org/10.1109/holm56075.2023.10352299">https://doi.org/10.1109/holm56075.2023.10352299</a>.'
  chicago-de: 'Probst, Roman und Jian Song. 2023. <i>Influence of Hardness and Fatigue
    on the Lifetime of a Modified Silver Coating in Fretting Wear and Corrosion Tests</i>.
    <i>2023 IEEE 68th Holm Conference on Electrical Contacts (HOLM)</i>. Electrical
    Contacts-IEEE Holm Conference on Electrical Contacts. [Piscataway, NJ]: IEEE.
    doi:<a href="https://doi.org/10.1109/holm56075.2023.10352299">10.1109/holm56075.2023.10352299</a>,
    .'
  din1505-2-1: '<span style="font-variant:small-caps;">Probst, Roman</span> ; <span
    style="font-variant:small-caps;">Song, Jian</span>: <i>Influence of Hardness and
    Fatigue on the Lifetime of a Modified Silver Coating in Fretting Wear and Corrosion
    Tests</i>, <i>Electrical Contacts-IEEE Holm Conference on Electrical Contacts</i>.
    [Piscataway, NJ] : IEEE, 2023'
  havard: R. Probst, J. Song, Influence of Hardness and Fatigue on the Lifetime of
    a Modified Silver Coating in Fretting Wear and Corrosion Tests, IEEE, [Piscataway,
    NJ], 2023.
  ieee: 'R. Probst and J. Song, <i>Influence of Hardness and Fatigue on the Lifetime
    of a Modified Silver Coating in Fretting Wear and Corrosion Tests</i>. [Piscataway,
    NJ]: IEEE, 2023, pp. 88–94. doi: <a href="https://doi.org/10.1109/holm56075.2023.10352299">10.1109/holm56075.2023.10352299</a>.'
  mla: Probst, Roman, and Jian Song. “Influence of Hardness and Fatigue on the Lifetime
    of a Modified Silver Coating in Fretting Wear and Corrosion Tests.” <i>2023 IEEE
    68th Holm Conference on Electrical Contacts (HOLM)</i>, IEEE, 2023, pp. 88–94,
    <a href="https://doi.org/10.1109/holm56075.2023.10352299">https://doi.org/10.1109/holm56075.2023.10352299</a>.
  short: R. Probst, J. Song, Influence of Hardness and Fatigue on the Lifetime of
    a Modified Silver Coating in Fretting Wear and Corrosion Tests, IEEE, [Piscataway,
    NJ], 2023.
  ufg: '<b>Probst, Roman/Song, Jian</b>: Influence of Hardness and Fatigue on the
    Lifetime of a Modified Silver Coating in Fretting Wear and Corrosion Tests, [Piscataway,
    NJ] 2023 (Electrical Contacts-IEEE Holm Conference on Electrical Contacts).'
  van: 'Probst R, Song J. Influence of Hardness and Fatigue on the Lifetime of a Modified
    Silver Coating in Fretting Wear and Corrosion Tests. 2023 IEEE 68th Holm Conference
    on Electrical Contacts (HOLM). [Piscataway, NJ]: IEEE; 2023. (Electrical Contacts-IEEE
    Holm Conference on Electrical Contacts).'
conference:
  end_date: 2023-10-11
  location: 'Seattle '
  name: 68th Holm Conference on Electrical Contacts (HOLM)
  start_date: 2023-10-04
date_created: 2024-04-18T10:05:51Z
date_updated: 2025-06-26T07:54:13Z
department:
- _id: DEP6012
doi: 10.1109/holm56075.2023.10352299
keyword:
- electrical contacts
- lifetime
- silver coating
- fretting corrosion
- fatigue
- wear through
language:
- iso: eng
page: 88 - 94
place: '[Piscataway, NJ]'
publication: 2023 IEEE 68th Holm Conference on Electrical Contacts (HOLM)
publication_identifier:
  eisbn:
  - '979‐8‐3503‐4246‐8 '
  - 979‐8‐3503‐4245‐1
  isbn:
  - 979‐8‐3503‐4244‐4
  issn:
  - 2158‐9992
publication_status: published
publisher: IEEE
series_title: Electrical Contacts-IEEE Holm Conference on Electrical Contacts
status: public
title: Influence of Hardness and Fatigue on the Lifetime of a Modified Silver Coating
  in Fretting Wear and Corrosion Tests
type: conference_editor_article
user_id: '83781'
year: '2023'
...
---
_id: '11360'
abstract:
- lang: eng
  text: The state of health and lifetime estimation process of electrical connectors
    via lifetime tests is a time and labor intensive process. In our previous work,
    a correlation between the contact resistance developments in the early stages
    of lifetime tests of electrical connectors with the final results was established
    using a data driven statistical process based on probability distribution. Also,
    state of health indicators for prognosis of lifetime were introduced. In this
    work, the state of health indicators have been optimized. The sensitivity analysis
    is performed with regards to the selection of the appropriate amount of test data
    based on test duration for the reliable prognosis of the state of health and the
    characteristic lifetime. Through this the possibility of further reduction of
    test duration required for the reliable prognosis of state of health is investigated.
    Based on the results of analysis, a guideline for the determination of the duration
    of lifetime tests which lead to a reliable prediction of lifetime of connectors
    can be provided. Also, an assessment of the state of art in the prognosis of the
    lifetime of electrical connectors has been presented.
author:
- first_name: Jian
  full_name: Song, Jian
  id: '5297'
  last_name: Song
- first_name: Abhay Rammurti
  full_name: Shukla, Abhay Rammurti
  id: '74188'
  last_name: Shukla
- first_name: Roman
  full_name: Probst, Roman
  id: '69156'
  last_name: Probst
citation:
  ama: Song J, Shukla AR, Probst R. <i>Advances in Evaluation of State of Health of
    Electrical Connectors</i>. IEEE; 2023:200-208. doi:<a href="https://doi.org/10.1109/holm56075.2023.10352279">10.1109/holm56075.2023.10352279</a>
  apa: Song, J., Shukla, A. R., &#38; Probst, R. (2023). Advances in Evaluation of
    State of Health of Electrical Connectors. In <i>2023 IEEE 68th Holm Conference
    on Electrical Contacts (HOLM)</i> (pp. 200–208). IEEE. <a href="https://doi.org/10.1109/holm56075.2023.10352279">https://doi.org/10.1109/holm56075.2023.10352279</a>
  bjps: '<b>Song J, Shukla AR and Probst R</b> (2023) <i>Advances in Evaluation of
    State of Health of Electrical Connectors</i>. [Piscataway, NJ]: IEEE.'
  chicago: 'Song, Jian, Abhay Rammurti Shukla, and Roman Probst. <i>Advances in Evaluation
    of State of Health of Electrical Connectors</i>. <i>2023 IEEE 68th Holm Conference
    on Electrical Contacts (HOLM)</i>. Electrical Contacts-IEEE Holm Conference on
    Electrical Contacts. [Piscataway, NJ]: IEEE, 2023. <a href="https://doi.org/10.1109/holm56075.2023.10352279">https://doi.org/10.1109/holm56075.2023.10352279</a>.'
  chicago-de: 'Song, Jian, Abhay Rammurti Shukla und Roman Probst. 2023. <i>Advances
    in Evaluation of State of Health of Electrical Connectors</i>. <i>2023 IEEE 68th
    Holm Conference on Electrical Contacts (HOLM)</i>. Electrical Contacts-IEEE Holm
    Conference on Electrical Contacts. [Piscataway, NJ]: IEEE. doi:<a href="https://doi.org/10.1109/holm56075.2023.10352279">10.1109/holm56075.2023.10352279</a>,
    .'
  din1505-2-1: '<span style="font-variant:small-caps;">Song, Jian</span> ; <span style="font-variant:small-caps;">Shukla,
    Abhay Rammurti</span> ; <span style="font-variant:small-caps;">Probst, Roman</span>:
    <i>Advances in Evaluation of State of Health of Electrical Connectors</i>, <i>Electrical
    Contacts-IEEE Holm Conference on Electrical Contacts</i>. [Piscataway, NJ] : IEEE,
    2023'
  havard: J. Song, A.R. Shukla, R. Probst, Advances in Evaluation of State of Health
    of Electrical Connectors, IEEE, [Piscataway, NJ], 2023.
  ieee: 'J. Song, A. R. Shukla, and R. Probst, <i>Advances in Evaluation of State
    of Health of Electrical Connectors</i>. [Piscataway, NJ]: IEEE, 2023, pp. 200–208.
    doi: <a href="https://doi.org/10.1109/holm56075.2023.10352279">10.1109/holm56075.2023.10352279</a>.'
  mla: Song, Jian, et al. “Advances in Evaluation of State of Health of Electrical
    Connectors.” <i>2023 IEEE 68th Holm Conference on Electrical Contacts (HOLM)</i>,
    IEEE, 2023, pp. 200–08, <a href="https://doi.org/10.1109/holm56075.2023.10352279">https://doi.org/10.1109/holm56075.2023.10352279</a>.
  short: J. Song, A.R. Shukla, R. Probst, Advances in Evaluation of State of Health
    of Electrical Connectors, IEEE, [Piscataway, NJ], 2023.
  ufg: '<b>Song, Jian/Shukla, Abhay Rammurti/Probst, Roman</b>: Advances in Evaluation
    of State of Health of Electrical Connectors, [Piscataway, NJ] 2023 (Electrical
    Contacts-IEEE Holm Conference on Electrical Contacts).'
  van: 'Song J, Shukla AR, Probst R. Advances in Evaluation of State of Health of
    Electrical Connectors. 2023 IEEE 68th Holm Conference on Electrical Contacts (HOLM).
    [Piscataway, NJ]: IEEE; 2023. (Electrical Contacts-IEEE Holm Conference on Electrical
    Contacts).'
conference:
  end_date: 2023-10-11
  location: Seattle
  name: 68th Holm Conference on Electrical Contacts (HOLM)
  start_date: 2023-10-04
date_created: 2024-04-18T10:11:50Z
date_updated: 2025-06-26T07:54:50Z
doi: 10.1109/holm56075.2023.10352279
keyword:
- accelerated life testing
- test duration
- contact resistance
- statistical model
- connector reliability
language:
- iso: eng
page: 200-208
place: '[Piscataway, NJ]'
publication: 2023 IEEE 68th Holm Conference on Electrical Contacts (HOLM)
publication_identifier:
  eisbn:
  - 979‐8‐3503‐4246‐8
  - '979‐8‐3503‐4245‐1 '
  eissn:
  - 2158‐9992
  isbn:
  - 979‐8‐3503‐4244‐4
  issn:
  - 2158-9992
publication_status: published
publisher: IEEE
series_title: Electrical Contacts-IEEE Holm Conference on Electrical Contacts
status: public
title: Advances in Evaluation of State of Health of Electrical Connectors
type: conference_editor_article
user_id: '83781'
year: '2023'
...