The Modified Martempering and its Effect on the Impact Toughness of a Cold Work Tool Steel

Filho, Dinecio dos Santos; Goldenstein, Hélio; Vatavuk, Jan

doi:10.4271/2011-36-0325

Cited by 1 publication

(2 citation statements)

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“…Perbedaan laju pendinginan ini biasanya dipengaruhi oleh ukuran dan bentuk komponen. Semakin besar perbedaan temperatur antara dua titik pada komponen selama pendinginan dan semakin dekat kedua titik ini pada komponen, maka semakin besar tegangan sisa yang terjadi, oleh karena itu semakin buruk disain komponen tersebut [19].…”

Section: Pendahuluanunclassified

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Perbaikan Sifat Mekanik Dodos Kelapa Sawit Produk Lokal Melalui Proses Pack Carburizing Dan Modified Martempering

Yunaidi

2022

JRM

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This paper aims to enhance the quality and service life of local product oil palm harvesting chisels so that they can compete with imported products, which until now are mostly used by oil palm harvesters in Indonesia. To achieve these objectives, the method of improving the mechanical properties of chisels was chosen through the pack carburizing and modified martempering processes. Chisels of local products can be improved in quality, especially their hardness and impact strength through the modified martempering or pack carburizing heat treatment process followed by modified martempering. Heat treatment of modified martempering at an oil cooling temperature of 1250 C followed by tempering at a temperature of 4500 C can increase the impact strength of chisels up to 12% higher than chisels without heat treatment, while its hardness can increase up to 29%. Heat treatment of pack carburizing followed by modified martempering at an oil cooling temperature of 1750 C and tempering at a temperature of 4500 C can increase the impact strength up to 65% and the hardness increases up to 27%.

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Section: Pendahuluanunclassified

“…Semakin tinggi perbedaan temperatur antara bagian permukaan dengan bagian dalam spesimen maka semakin besar pula tegangan termalnya. Dengan mengubah temperatur pendinginan menjadi lebih tinggi, efek tegangan termal yang berbahaya akan sangat berkurang [19].…”

Section: Dodosunclassified

Perbaikan Sifat Mekanik Dodos Kelapa Sawit Produk Lokal Melalui Proses Pack Carburizing Dan Modified Martempering

Yunaidi

2022

JRM

View full text Add to dashboard Cite

show abstract

The Modified Martempering and its Effect on the Impact Toughness of a Cold Work Tool Steel

Cited by 1 publication

References 3 publications

Perbaikan Sifat Mekanik Dodos Kelapa Sawit Produk Lokal Melalui Proses Pack Carburizing Dan Modified Martempering

Perbaikan Sifat Mekanik Dodos Kelapa Sawit Produk Lokal Melalui Proses Pack Carburizing Dan Modified Martempering

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