Pengaruh Variasi Temperatur Sintering Dan Waktu Tahan Sintering Terhadap Densitas Dan Kekerasan Pada Mmc W-Cu Melalui Proses Metalurgi Serbuk
Submission Date: 2014-02-10 11:07:53
Accepted Date: 2014-03-15 00:00:00
Abstract
Proyektil adalah bagian dari peluru yang dioptimalkan agar peluru memiliki jangkauan dan daya tembus yang tinggi.Untuk itu material yang biasa digunakan adalah material yang memiliki densitas yang tinggi seperti timbal.Namun, timbal memiliki tingkat kontaminasi yang tinggi. Oleh karena itu, dalam penelitian ini akan dibuat komposit W-Cu (Tungsten-Copper) sebagai material alternatif untuk core proyektil. Pembuatan dilakukan dengan proses metalurgi serbuk dengan komposisi fraksi berat 70%W dan 30%Cu serta tekanan kompaksi 400 MPa. Sedangkan temperatur sintering dan waktu tahan sintering dilakukan dengan beberapa variasi yaitu 700, 800, 900°C dan 1,2,3 jam, secara berturut-turut. Untuk mengidentifikasi digunakan beberapa pengujian seperti uji densitas, uji kekerasan, SEM, XRD dan uji tekan. Berdasarkan hasil pengujian, fasa yang terbentuk dari hasil XRD adalah W dan Cu, sinter density tertinggi sebesar 12.78 g/cm3 dan porositas terkecil sebesar 10.82% pada 900°C-2 jam, kekerasan tertinggi sebesar 34.7 HRb pada 900°-2 jam, kekuatan tekan tertinggi sebesar 156.71 MPa pada 800°C-3 jam, modulus elastisitas tertinggi sebesar 50.23 GPa pada 800°C-3 jam
Keywords
core proyektil; komposit W-Cu; metalurgi serbuk
CC Licencing
Authors who publish with this journal agree to the following terms:
- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).
- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).
Refbacks
- There are currently no refbacks.
Jurnal Teknik ITS by Direktorat Riset dan Pengabdian Masyarakat (DRPM) ITS is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
Based on a work at https://ejurnal.its.ac.id/index.php/teknik.
Statistik Pengunjung