3048

2965

كارشناسي ارشد

شناسايي و انتخاب مواد

اصفهان: دانشگاه صنعتي اصفهان، دانشكده مواد

1384

[هشت]، 80، [II]ص.: مصور، جدول، عكس ﴿رنگي﴾، نمودار

مرتضي شمعانيان، بهزاد نيرومند

فخرالدين اشرفي زاده

ابراهيم حشمت دهكردي

1395/12/16

كتابنامه

مواد

مهندسي مواد

ID2965

به فارسي و انگليسي: قابل رويت در نسخه ديجيتالي

Abstract Between the groups of the Stainless steels Ferritic and Ferritic Austenitic Stainlesssteel are covered the most uses of stainless steels Unfortunately they are expensive Onthe other hand martensitic stainlesssteels like 410 and 420 are cheap but they didn t havegood weldability and corrosion resistance This group of stainless steels can modify byadding nickel and molybdenum Modified martensitic stainless steel called supermartensitic stainless steel CA6NM a cast martensitic stainless steel from the view pointof composition microstructure and proprieties is very similar to super martensiticstainless steels CA6NM steel is replacement for many applications of CA 15 alloy wasonce used In this researcheffects of interpasstemperatureand post weld heat treatment aon CA6NM weldment are presented Increasing the interpass temperature from 1500Cto 3 500C causedto decreasing0 ferrite in as weld structure by the means of decreasingthe Cr segregation Microhardness measurements show that the type of heat treatment haslittle effect on hardness of weldment Postweld heat treatment including doubletempering causedto formation of carbide like Cr23C6 Corrosion measurementby TAFLEextrapolation shows that double tempered samples sensitized by the formation ofchromium carbide formation d t s ltJ Ji J 1I JI f

مرتضي شمعانيان، بهزاد نيرومند

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ابراهيم حشمت دهكردي