Pengaruh Suhu Artificial Aging Terhadap Sifat Mekanis dan Struktur Mikro Komposit Al-Mg-Si

Subyanto, Affandy (2015) Pengaruh Suhu Artificial Aging Terhadap Sifat Mekanis dan Struktur Mikro Komposit Al-Mg-Si. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Penentuan suhu yang digunak an pada proses artificial aging akan menentuk an pengerasan setelah proses quenching dan sangat berpengaruh terhadap sifat mek anis pada k omposit Al-Mg-Si. Perbedaan suhu yang digunak an ak an menghasilk an perbaikan sifat mek anis yang berbeda, sehingga dalam hal ini ak an dicari pada suhu berapa yang tepat guna dilak uk an aging untuk mendapatk an sifat mek anis yang optimum. Dengan studi literatur, mak a dilak uk an percobaan pada k omposit Al -Mg-Si dengan perlak uan panas solution heat treatment 400 °C dan di quenching pada media air yang dilanjutkan k e perlak uan aging dengan variasi suhu aging 130 °C, 180°C, 230°C, 280°C dan 330°C dengan HT 1,5 jam. Setelah percobaan tesebut, dilak uk an pengujian k ek erasan dan pengamatan terhadap perubahan struk tur mik ro. Berdasark an percobaan yang telah dilak uk an yang dilanjutk an dengan pengujian, mak a didapat fenomena dimana semak in tinggi suhu yang digunak an mulai dari 130 °- 280°C terjadi peningkatan nilai kekerasan bahan sebesar 10%. Nilai k ek erasan naik dari 48,05 HV se belum artificial aging hingga menjadi 53,13 HV. ============================================================================================= Temperature in artificial aging process will determine the hardness and mechanical properties of composites Al-Mg-Si after quenching process. This research aimed to search the match temperature on aging process to obtain optimum mechanical properties. Based on study literature, experiments done by heat treatment solution at 400°C and water as quenching medium then continued to aging process with temperature variation 130°C, 180°C, 230°C, 280°C and 330°C with HT 1.5 hours. Hardness testing and observation of its microstructure is done after aging process. This research resulted that higher temperature used on aging temperature range from 130 °C – 280°C will increase 10% of material hardness, from 48.05 HV before artificial aging to be 53.13 HV.

Item Type: Thesis (Undergraduate)
Additional Information: RSFi 620.112 92 Sub p
Uncontrolled Keywords: artificial aging, sifat mekanis, struktur mikro, perlakuan panas dan quenching, mechanical properties, microstructure, heat treatment and quenching
Subjects: Q Science > QC Physics
T Technology > TN Mining engineering. Metallurgy > TN752.I5 Steel--Heat treatment
Divisions: Faculty of Mathematics and Science > Physics
Depositing User: Eny Widiastuti -
Date Deposited: 26 Mar 2018 04:39
Last Modified: 26 Mar 2018 04:39
URI: http://repository.its.ac.id/id/eprint/51633

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