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Sains Malaysiana 45(4)(2016): 653–658 Influence of Sintering
Parameters on the Compressive Yield Strength of Stainless Steel
Foams Produced by the Space Holder Method (Pengaruh Parameter
Pensinteran terhadap Kekuatan Alah Mampatan Keluli Tahan Karat Berbusa
yang Dihasilkan melalui Kaedah Pengisi Pemegang Ruang) TAN KOON
TATT1,2,
NORHAMIDI
MUHAMAD1*,
ANDANASTUTI
MUCHTAR1,
ABU
BAKAR
SULONG1
& NEO MING CHERNG1 1Department of Mechanical
and Material Engineering, Faculty of Engineering and Built Environment Universiti
Kebangsaan Malaysia, 43600 UKM Bangi, Selangor Darul Ehsan, Malaysia 2Faculty of Pharmacy,
MAHSA University, Pusat Bandar Damansara, Damansara Heights 50490
Kuala Lumpur, Malaysia Received:
19 March 2015/Accepted: 3 November 2015 ABSTRACT Metallic foams are a
new class of materials that have a great potential to be used in
various functional and structural applications. Due to their competitive
price compared to aluminium, metallic foams are anticipated to become
an alternative material for light-weight structures. In this study,
stainless steel foams are fabricated using a powder space holder
method. The materials used include stainless steel powder, a novel
space holder glycine and binders consisting of palm stearin and
of polyethylene (PE). The stainless steel foams
are sintered at 1100oC, 1200oC
and 1300oC with sintering times of 1, 2 and 3 h, respectively,
to investigate the effects of the sintering parameters on the compressive
yield strength of the stainless steel foams. The results showed
that all of the stainless steel foams produced exhibit the general
behaviours of metal foams. The sintering time is the most significant
parameter that influences the compressive yield strength of stainless
steel foams. Increasing the sintering temperature and sintering
time will increase the compressive yield strength. The interaction
between the sintering temperature and sintering time is found to
be not statistically significant. Keywords: ANOVA;
compressive strength; metal foams; space holder ABSTRAK Logam berbusa merupakan
kelas bahan terbaru yang mempunyai potensi yang besar untuk digunakan
dalam pelbagai aplikasi fungsi dan struktur. Disebabkan harganya
yang kompetitif berbanding dengan aluminium, logam berbusa dijangka
menjadi bahan alternatif untuk struktur berat-ringan. Dalam kajian
ini, keluli tahan karat berbusa difabrikasi menerusi kaedah pemegang
pengisi ruang. Bahan yang digunakan termasuklah serbuk keluli tahan
karat, pemegang pengisi ruang terbaru, glisina dan bahan pengikat
yang terdiri daripada stearin sawit dan polietilena (PE). Keluli tahan karat berbusa disinter pada suhu 1100oC,
1200oC dan 1300oC
dengan masa pensinteran masing-masing 1, 2 dan 3 jam untuk mengkaji
kesan parameter pensinteran terhadap kekuatan mampatan keluli tahan
karat berbusa. Keputusan kajian menunjukkan bahawa semua keluli
tahan karat berbusa yang dihasilkan menunjukkan perilaku umum logam
berbusa. Masa pensinteran merupakan parameter yang paling signifikan
mempengaruhi kekuatan mampatan keluli tahan karat berbusa. Peningkatan
suhu dan masa pensinteran akan meningkatkan kekuatan mampatan. Interaksi
antara suhu pensinteran dan masa pensinteran didapati tidak ketara. Kata kunci: ANOVA; busa logam; kekuatan
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