采用旋转弯曲疲劳试验研究了两种不同冶金工艺生产的60Si2CrVA弹簧钢的高周疲劳破坏行为.结果表明,尽管两种试验料的氧含量接近,但两者夹杂物特征的差异使其疲劳性能存在明显的差异.与采用电炉+LF+VD+CC工艺牛产的X8料相比,采用转炉+LF+RH+CC上艺生产的X6料中的夹杂物数量明显减少,夹杂物尺寸较小,同时还减少了不规则的多棱角富A12O3夹杂,因而后者的疲劳强度得到明显提高,并具有良好的疲劳寿命稳定性.
参考文献
| [1] | Lee CS.;Li DM.;Yoo SJ.;Nam WJ.;Lee KA. .Microstructural influence on fatigue properties of a high-strength spring steel[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,1998(1/2):30-37. |
| [2] | Murakami Y;Kodama S;Konuma S .Quantitative Evaluation of Effects of Non-Metallic Inclusions O Fatigue Strength of High Strength Steels[J].International Journal of Fatigue,1989,11(05):291. |
| [3] | 王习术,梁锋,曾燕屏,谢锡善.夹杂物对超高强度钢低周疲劳裂纹萌生及扩展影响的原位观测[J].金属学报,2005(12):1272-1276. |
| [4] | J.M. Zhang;S.X. Li;Z.G. Yang .Influence of inclusion size on fatigue behavior of high strength steels in the gigacycle fatigue regime[J].International Journal of Fatigue,2007(4):765-771. |
| [5] | 惠卫军,董瀚,曾新光,邢献强,李强.超纯洁弹簧钢[J].钢铁,1999(09):68-72. |
| [6] | 张继明,张建锋,杨振国,李守新,惠卫军,翁宇庆.高强钢中最大夹杂物的尺寸估计与疲劳强度预测[J].金属学报,2004(08):846-850. |
| [7] | Y. Murakami;T. Nomoto;T. Ueda .Factors influencing the mechanism of superlong fatigue failure in steels[J].Fatigue & Fracture of Engineering Materials and Structures,1999(7):581-590. |
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