Answer
'Yankewa' ko saiti na dindindin yana faruwa lokacin da aka matsa bazara zuwa matakin damuwa wanda ya wuce iyakar kayan abu. A cikin binciken gazawar, ana gano wannan ta hanyar auna tsayin kyauta $H_f$ bayan amfani da kwatanta shi da ainihin ƙayyadaddun bayanai. Idan $H_f$ ya ragu, bazarar ta lalace ta hanyar filastik. Abubuwan da ake iya haifarwa sun haɗa da: 1) Yanayin aiki wanda ya wuce iyakar kayan, 2) Ƙirar ƙira $ \ sigma$ ƙetare ƙarfin amfanin gona $ S_y$ a tsayi mai tsayi, ko 3) Maganin zafi mara kyau (misali, canji mara cika na 17-7PH). Don gyara wannan, ya kamata mutum yayi la'akari da 'presetting' bazara a lokacin ƙera ko canzawa zuwa wani abu mai ƙarfi kamar Inconel X-750.