?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=PENGARUH+TORSI+DAN+ANIL-QUENCH+TERHADAP+KOROSI+RETAK+TEGANG+(SCC)+++BAUT+AISI+304SS+DALAM+LINGKUNGAN+MgCl2+CAIR+PADA+TEMPERATUR+150%C2%B0C&rft.creator=YOAN+SAPUTRA%2C+0815021044&rft.subject=+&rft.subject=Karya+Karya+Umum+%3D+000&rft.description=ABSTRAK+(INDONESIA)%0D%0A%0D%0APengaruh+torsi+dan+anil-quench+terhadap+korosi+retak+tegang+baut+AISI+304SS+dalam+lingkungan+yang+menggandung+MgCl2+pada+temperature+150+%C2%B0C+dengan+variasi+waktu+rendaman+3+hari%2C+5+hari%2C+dan+7+hari+dan+variasi+beban+torsi+0+Nm%2C+20+Nm%2C+40+Nm%2C+dan+60+Nm+telah+di+teliti.+Karateristik+dan+morfologi+retakan+spesimen+dengan%2Ftanpa+pembebanan+torsi+di+analisis+menggunakan+microskop+optic+(OM)%2C+scanning+electron+mikroskop+(SEM)+%2F+energi+disperse+spektroskop+(EDS)%2C+dan+X-ray+difraksi+(XRD)%0D%0A%0D%0AKekasaran+permukaan+dan+cacat+pori+yang+terbentuk+selma+pemberian+torsi+pada+tepi+baut+menjadi+pemicu+retak+awal+dan+perambatanya+selama+pencelupan+ke+dalam+larutan+magnesium+klorida+yang+mendidih.+Berdasarkan+gambar+steruktur+mikro+dan+topologi+patahan+spesimen+baut%2C+retak+transgranular+dan+intergranular+terbentuk+pada+awalnya+berasal+dari+tepi+kepala+baut+dan+akhirnya+merambat+ke+arah+transversal+(radial).+Sedangkan+untuk+sampel+yang+mengalami+anil-quench+di+atas+suhu+sensitisasi+yaitu+pada+suhu+1050+%C2%B0C+tidak+teramati+adanya+retakkan+pada+baut%2C+anil-quench+mampu+mencegah+SCC+pada+spesimen+sehingga+kromium+kabrida+akan+larut+kedalam+butiran+dan+tidak+sempat+terjadi+presiptasi.%0D%0A%0D%0AHasil+analisa+EDS+menunjukan+oksigen+dan+klorida+terdeteksi+pada+permukaan+daerah+patahan+sebagai+produk+korosi.+Lapisan+pritektif+dari+oksida+krom+terbentuk+pada+kepala+baut+dirusak+oleh+klorida+yang+berdifusi+kedalam+melalui+lapisan+oksigen+krom+dan+konsekuwensinya+ion-ion+besi+dan+nikel+berdifusi+keluar+untuk+membentuk+oksida+besi+dan+oksida+nikel.%0D%0A%0D%0AKata+kunci+%3A+baut+AISI+304SS%2C+larutan+magnesium+klorida%2C+korosi+retak+tegang%2C+retak+transgranular+dan+intragranular.%0D%0A%0D%0A%0D%0AABSTRACT+(ENGLISH)%0D%0A%0D%0AThe+influence+of+torque+and+anil-quench+to+stress+corrosion+cracking+of+AISI+304SS+bolt+in+environments+containing+MgCl2+in+temperature+150+%C2%B0+C+with+variation+of+the+immersion+time+3+days%2C+5+days%2C+and+7+days+and+the+variation+of+the+load+torque+of+0+Nm%2C+20+Nm%2C+40+Nm%2C+and+60+Nm+has+been+examined.+Characteristics+and+morphology+of+the+specimen+cracks+with%2Fwithout+load+torque+in+the+analysis+using+optical+microscope+(OM)%2C+scanning+electron+microscopy+(SEM)+%2F+energy+dispersion+spectroscope+(EDS)%2C+and+X-ray+diffraction+(XRD).%0D%0A%0D%0APore+surface+roughness+and+defects+formed+during+the+administration+of+bolt+torque+on+the+edge+of+the+trigger+crack+initiation+and+propagation+during+immersion+into+boiling+magnesium+chloride+solution.+Based+on+the+images+of+micro+structure+and+topology+bolt+fracture+specimens%2C+the+cracks+of+transgranular+and+intragranular+formed+was+originally+derived+from+the+edge+of+the+bolt+head+and+eventually+spread+to+the+direction+transverse+(radial).+As+for+the+annealed+sample+experiencing+above-quench+sensitization+temperature+is+at+a+temperature+of+1050+%C2%B0+C+was+not+observed+any+cracks+on+the+bolt%2C+annealing-quench+capable+of+preventing+SCC+of+the+specimen+so+that+the+chromium+kabrida+will+dissolve+into+the+grain+and+could+not+happen+precipitation.%0D%0A%0D%0AEDS+analysis+results+show+oxygen+and+chloride+was+detected+on+the+surface+area+of+the+fracture+as+corrosion+products.+Protective+layer+of+chromium+oxide+is+formed+on+the+bolt+head+marred+by+chloride+that+diffuses+into+the+through+layers+of+chrome+and+consequently+oxygen+ions+diffuse+out+of+iron+and+nickel+to+form+iron+oxide+and+nickel+oxide.%0D%0A%0D%0AKeywords%3A+bolt+AISI+304SS%2C+a+solution+of+magnesium+chloride%2C+stress+corrosion+cracking%2C+transgranular+and+intergranular+cracks.%0D%0A&rft.publisher=Fakultas+Teknik&rft.date=2014-12-15&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F6116%2F1%2FABSTRAK.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F6116%2F2%2FABSTRACT.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F6116%2F3%2FCOVER%2520DALAM.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F6116%2F5%2FLEMBAR%2520PERSETUJUAN.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F6116%2F6%2FLEMBAR%2520PENGESAHAN.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F6116%2F7%2FLEMBAR%2520PERNYATAAN.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F6116%2F8%2FRIWAYAT%2520HIDUP.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F6116%2F9%2FPERSEMBAHAN.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F6116%2F10%2FMOTO.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F6116%2F11%2FSANWACANA.pdf&rft.for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