MnCu Aloyi

Manganese mkuwa ndi mtundu wa aloyi mwatsatanetsatane kukana, nthawi zambiri amaperekedwa mu mawaya, komanso pang'ono mbale ndi n'kupanga, amene ali osiyanasiyana ntchito mitundu yonse ya zida ndi mamita, nthawi yomweyo, zinthu ndi kopitilira muyeso. -zinthu zowoneka bwino kwambiri, malire apamwamba a kuyeza kwamphamvu kumatha kufika pa 500 Pa. Mkuwa wa manganese uli ndi zotsatira zabwino zotsutsana ndi piezo ndipo umagwiritsidwa ntchito kwambiri pakukakamiza. kuyeza m'malo otentha kwambiri komanso opanikizika kwambiri monga kuphulika kwa bombardment, zotsatira zothamanga kwambiri, kuphulika kwamphamvu ndi kaphatikizidwe kazinthu zatsopano. Kusintha kwa kukana kwa manganese mkuwa ndi kuthamanga kwakunja kuli pafupifupi liniya ntchito ubale (ie piezoresistive coefficient K pafupifupi mosalekeza), ndi kukana kutentha koyenera ndi kochepa, ndi manganese mkuwa ngati chinthu tcheru opangidwa ndi masensa, akhoza anazindikira ndi zazikulu-anzanu kuthamanga. muyeso umasinthidwa kukhala muyeso wa kusintha kwa manganese mkuwa.
Mphamvu ya piezoresistive ya manganese-copper alloys yakhala ikugwiritsidwa ntchito kuyeza kuthamanga kwa zaka zoposa 90, ndipo m'zaka za m'ma 1960, Fuller ndi Price, Bernstein ndi Keough anali oyamba kugwiritsa ntchito masensa a manganese-copper poyesa kuthamanga kwamphamvu (shockwave) . Pambuyo pazaka zafukufuku zikuwonetsa kuti, ngakhale piezoresistive coefficient of manganese-copper alloy sipamwamba kwambiri, koma chifukwa imakhala ndi chidwi chachikulu, kuyankha mwachangu, mzere wabwino, kukana kutentha kwapakati ndi zina zotero, ndizoyenera kwambiri kupanga ma ultrahigh-pressure force sensors. Mitundu yake yothandiza ya 1 ~ 50GPa, pakali pano ndiye malire apamwamba a kuyeza kwamphamvu kwa masensa othamanga, omwe amagwiritsidwa ntchito kwambiri pophunzira za zotanuka-pulasitiki zowulutsa mawonekedwe azinthu, kusweka kwamphamvu, kusweka kosanjikiza, kusintha kwa gawo, zophulika ndi zina. kuphulika. Komabe, chitetezo, zankhondo ndi zigawo zina zapadera zimafunikira mwachangu kukakamiza kopitilira muyeso wolunjika, ndipo sensa imayenera kuyankha mwachangu kwambiri. Kupita patsogolo kwa kafukufuku wa masensa a Mn-Cu m'magawo awiriwa akufotokozedwa mwachidule [1].
Ma aloyi a Cu-Mn amagwiritsidwa ntchito kwambiri pakunyowa ndipo ali m'gulu la kusintha kwa gawo la thermoelastic martensitic. Mtundu uwu wa aloyi mu 300-600 ℃ kwa okalamba kutentha mankhwala, aloyi bungwe zabwino martensite amapasa bungwe, ndi zabwino martensite amapasa bungwe ndi wosakhazikika, pamene pansi pa alternating kugwedera nkhawa zidzachitika pamene rearrangement wa kayendedwe, kotero monga kuyamwa kuchuluka kwa mphamvu, ntchito ya damping zotsatira . Mkuwa wa manganese uli ndi zotsatira zabwino za piezoresistive zomwe zimagwiritsidwa ntchito kwambiri poyezera kuthamanga kwa kutentha kwambiri komanso malo othamanga kwambiri monga kuphulika, kuthamanga kwambiri, kuphulika kwamphamvu, kaphatikizidwe kazinthu zatsopano ndi zina zotero. Kusintha kwa kukana kwa manganese mkuwa ndi kuthamanga kwakunja kuli pafupifupi liniya magwiridwe antchito (ie piezoresistive coefficient K pafupifupi nthawi zonse), ndi kukana kutentha kokwanira ndi kakang'ono, ndi manganese mkuwa ngati chinthu tcheru chopangidwa ndi masensa, amatha kuzindikira kuyeza kwamphamvu kwamphamvu kwambiri mu kuyeza kwa kusintha kwa mkuwa wa manganese.