Super Duplex Stainless Hlau Weld Neck

Nickel-based alloy tau tsim nyob rau xyoo 1930s lig, thiab Tebchaws Askiv thawj zaug tsim cov nickel-based alloy Nimonic75(Ni-20Cr-0.4Ti)) hauv xyoo 1941. Txhawm rau txhim kho lub zog nkag, Nimonic 80(Ni-20Cr{10}}.5Ti-1.3Al) tau npaj los ntawm kev ntxiv Al. Tebchaws Meskas nyob rau nruab nrab-1940s, Russia nyob rau xyoo 1940s lig, thiab Tuam Tshoj nyob rau nruab nrab{16}}s kuj tau tsim cov nickel-based alloys. Txoj kev loj hlob ntawm npib tsib xee-raws li alloys suav nrog ob yam, uas yog, kev txhim kho ntawm cov alloy muaj pes tsawg leeg thiab kev tsim kho tshiab ntawm cov tshuab tsim khoom.Nyob rau xyoo 1950, kev tsim cov tshuab nqus tsev smelting tsim cov xwm txheej rau refining npib tsib xee alloys uas muaj siab Al thiab Ti, uas ua rau muaj kev nce ntxiv hauv cov hlau alloy lub zog thiab siv qhov kub thiab txias. Nyob rau xyoo 1950, vim tias qhov kub thiab txias ua haujlwm ntawm turbine hniav, cov hlau yuav tsum muaj qhov kub thiab txias, tab sis lub zog ntawm cov hlau yog siab, nws nyuaj rau deform, lossis txawm tias tsis tuaj yeem deform. , yog li lub precision casting tshuab yog siv los tsim ib tug series ntawm casting alloys nrog zoo kub siab zog. Nyob rau hauv nruab nrab -1960s, directional crystallization thiab ib qho siv lead ua superalloys nrog cov khoom zoo dua tau tsim, nrog rau hmoov metallurgy superalloys.