1Cr11Ni2W2MoV不銹鋼沖擊性能不合格原因探討

Reasons Discussion on Unqualified Impact Properties of 1Cr11Ni2W2MoV Stainless Steel

通過對99件成分存在波動的1Cr11Ni2W2MoV不銹鋼經(jīng)不同溫度回火后的力學(xué)性能進(jìn)行統(tǒng)計分析, 探討了該鋼經(jīng)常出現(xiàn)沖擊性能不合格的原因。結(jié)果表明: 造成該鋼沖擊性能不合格的原因主要是化學(xué)成分的波動和回火溫度偏低, 將回火溫度提高至680～710 ℃可以有效提高該鋼沖擊性能的一次合格率。
The impact properties unqualified reasons of 1Cr11Ni2W2MoV stainless steel were discussed by statistically analyzing the mechanical properties of 99 pieces of specimens which had a certain chemical compositions fluctuation after tempering at different temperature. The results show that the main reasons for the unqualified impact properties were the chemical compositions fluctuation and the lower tempering temperature. Raising the tempering temperature to 680-710 ℃ could effectively improve the impact properties passing rate of 1Cr11Ni2W2MoV stainless steel.

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