Zirconium 705 alloy kayan Properties
Menene Properties na zirconium 705 gami?
Zirconium yana da ƙarancin shaƙar neutron mai zafi, ƙarfi da tauri mai yawa, juriya mai kyau ga tsatsa, da kuma juriyar da ke aiki. Ana amfani da shi sosai a fannin masana'antar makamashin atomic, sararin samaniya, da kuma maganin halittu. Yana da muhimmin abu na dabarun zamani, wanda kuma aka sani da "ƙarfe na farko na zamanin atomic." Don ƙara ƙarfin kwanciyar hankali na amfani da ƙarfe na zirconium da kuma rage wahalhalun sarrafawa da kerawa, yana da mahimmanci a haɗa kayan ƙarfe na zirconium. Saboda haka, yana da mahimmanci a yi nazarin tsari da halayen haɗin ƙarfe biyu bayan an samar da su ta hanyar fasahar walda, kuma walda ta yaɗuwa hanya ce ta haɗa kayan da aka saba amfani da su don walda ƙarfe na zirconium da zirconium.
Zr705 zirconium gami An yi amfani da shi azaman kayan tushe, an ƙara Cu a matsayin matsakaicin Layer, kuma an gudanar da walda mara amfani a ƙarƙashin yanayi daban-daban. Tasirin kauri na matsakaicin Cu da zafin walda akan microstructure da kaddarorin inji na yaduwar haɗin gwiwa da aka yi wa welded an fi nazarin su. An tattauna haɗin gwiwa. Tsarin tsari; Bugu da ƙari, an gwada juriya na lalata na haɗin gwiwa a cikin maganin acidic ta hanyar gwaje-gwaje na lalata, kuma an yi nazarin juriya na lalatawar haɗin gwiwa da aka samu a ƙarƙashin nau'i na tsaka-tsakin tsaka-tsakin tsaka-tsaki da yanayin walda. Sakamakon ya nuna:
① Bayan ƙara Cu tsare a matsayin matsakaici Layer, lokacin da Cu tsare kauri ne 30μm-welding zafin jiki 900>920 °C da Cu tsare kauri ne 10μm-welding zafin jiki 880, 900, 920 ° C, da ke dubawa da aka kafa kusa da tushe. karfe Akwai nau'ikan tsari guda biyu, tsarin Widmanstatten, da tsarin dual-phase, wanda zai iya zama sanadin yaduwar Cu atom. Lokacin da zafin jiki ya wuce 920 ° C kuma ya kai 940 ko 960 ° C, yanayin zafin da a->p ya canza gaba daya ya kai, kuma dukkanin tsarin kayan tushe shine tsarin Widmanstaten.
② Lokacin da kauri na Cu foil shine 30μm - zafin walda 900, 920% da kauri na Cu foil 10μm. Welding zafin jiki 880.900 °C, wani Layer na intermetallic fili aka kafa a hadin gwiwa, da kuma wannan fili Layer ƙunshi Zr2Cu.Zri4Cu5i> ZrCu>ZrCu5 da Zr3Cu8 matakai da Zr7Cuio da Zr8Cu5 bulan iya wanzu. Bugu da ƙari, lokacin amfani da Cu tare da kauri na 10 μm a matsayin tsaka-tsakin tsaka-tsakin a daidai wannan zafin jiki (920 ° C), ba a samar da mahadi masu tsaka-tsaki ba, yana nuna cewa kauri na murfin tagulla yana da wani tasiri a kan halayen halayen haɗari na tsaka-tsakin. Lokacin ƙara yawan zafin jiki zuwa 940 ° C da 960 ° C. (A lokacin 2, ba a samar da wani Layer na ƙarfe a cikin gidajen abinci ba inda aka ƙara Cu tare da kauri na 30pm ko 10 na yamma a matsayin tsaka-tsakin Layer. Dalili na iya zama cewa zafin walda ya haɓaka yawan watsawa da nisa na atoms a cikin matrix Zr, da Cu atoms sun kasance masu ƙarfi.An narkar da su a cikin matrix Zr, a ƙarshe an kafa wani yanki mai ƙarfi na Zr-Cu mai faɗi.
③ A kauri na 30μmCu foil, matsakaicin ƙarfin ƙarfin ƙarfi a hankali yana ƙaruwa tare da haɓakar zafin jiki, kuma elongation na farko yana ƙaruwa sannan ya ragu, sannan zafin jiki shine 940 ° C; a kauri na 10μmCu foil, matsakaicin ƙarfin ƙarfi da haɓakawa duka biyun kayan aikin injiniya na haɗin gwiwar da ke samar da rukunin fili ba su da kyau, wanda ya kamata ya kasance saboda raguwa mai ƙarfi na fili na intermetallic. Abubuwan injunan kayan aikin haɗin gwiwa ba tare da mahaɗin tsaka-tsakin ƙarfe ba suna inganta sosai lokacin da zafin jiki ya kai 940 ° C. Lokacin, matsakaicin ƙarfin ƙarfi da haɓakar haɗin gwiwa sun kasance mafi girma a tsakanin duk kauri, kuma ya karu daga 576MPa da 23% a 30μm zuwa 580MPa da 32% a 10μm (ainihin kayan tushe 585MPa da 44%).
Yawan lalata na zirconium gami A cikin ruwa mai lalata acidic bai wuce 0.5%/h. Daga hangen nesa na micromorphology na lalata, juriya na lalata shine: kayan tushe na bayan-weld> yanki mai walƙiya ba tare da Layer Layer ba> kayan tushe na asali> Layer Layer Weld yankin; daga hangen nesa na lalata da asarar nauyi, ƙimar lalata da asarar nauyi na kayan tushe na asali sune mafi girma, tare da asarar nauyi ya kai 44%. Yayin da zafin walda ke ƙaruwa, ƙimar lalata tana raguwa kuma ƙimar asarar nauyi tana raguwa.
