本文選題：Cr + 沖壓開裂�。� 參考：《山西冶金》2016年06期

【摘要】：某工廠使用3.5 mm厚的冷軋退火產(chǎn)品1Cr17不銹鋼在生產(chǎn)不銹鋼餐勺時,材料發(fā)生沖壓開裂。利用SEM、光學顯微鏡、顯微硬度測試儀等手段,對開裂處進行斷口觀察、金相分析、顯微硬度測試。研究結(jié)果表明,該產(chǎn)品沖壓開裂的主要原因是不恰當?shù)臒崽幚韺?dǎo)致1Cr17不銹鋼在退火過程中進入α+γ雙相區(qū),最終在冷卻到室溫后出現(xiàn)馬氏體相,馬氏體大大降低了材料的塑性和韌性,導(dǎo)致了沖壓開裂。
[Abstract]:In a factory, 1Cr17 stainless steel, a 3.5mm thick cold rolled annealing product, was used to produce stainless steel. By means of SEM, optical microscope and microhardness tester, fracture surface observation, metallographic analysis and microhardness test were carried out. The results show that the main reason for stamping cracking of 1Cr17 stainless steel is that improper heat treatment leads to 偽 緯 duplex phase during annealing, and martensite phase appears after cooling to room temperature. Martensite greatly reduces the plasticity and toughness of the material, resulting in stamping cracking.
【作者單位】： 山西太鋼不銹鋼股份有限公司技術(shù)中心;
【分類號】：TS972.23;TG386
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本文編號：1931099