研究了S含量对高速车轮钢性能和夹杂物的影响.借助扫描电镜(SEM)对车轮钢中MnS,Al2O3等夹杂物进行了观察和统计分析,结果表明:随着S质量分数的增加(0.002％～0.014％),车轮钢的强度基本保持同一水平但冲击韧性先增加后降低,在S质量分数为0.011％时韧性最优.其原因在于S含量的增加可以有效地促进塑性较好的MnS对硬性的Al2O3相的包裹,从而改善钢的韧性；但S含量过度增加则导致MnS量过多,反而对韧性不利.
参考文献
| [1] | Lyne C M;Kasak A .Effect of Sulfur on the Fatigue Behavior of Bearing Steel[J].Transactions ASM,1968,61:10. |
| [2] | 邓枝生.硫对GCr15轴承钢K(1c)的影响[J].金属学报,1976(12):187. |
| [3] | 张维平.硫化物对GCr15轴承钢疲劳寿命的影响[J].四川师范大学学报（自然科学版）,2005(05):619-622. |
| [4] | 马跃,潘涛,江波,崔银会,苏航,彭云.S含量对高速车轮钢断裂韧性影响的研究[J].金属学报,2011(08):978-983. |
| [5] | Birkle A J;Wei R P;Pellissier G E .Analysis of Plane-Strain Fracture in a Series of 0.45C-Ni-Cr-Mo Steels With Different Sulfur Contents[J].Transactions ASM,1966,59:981. |
| [6] | Raghupathy V P;Srinivasan V;Krishnan H et al.The Effect of Sulphide Inclusions on Fracture Toughness and Fatigue Crack Growth in 12 wt% Cr Steels[J].Journal of Materials Science,1982,17:2112. |
| [7] | 杨成威,吕迺冰,卓晓军,王新华,王万军.MnS在Ti-Al复合脱氧氧化物上的析出研究[J].钢铁,2010(11):32-36. |
| [8] | Katsunari OIKAWA;Hiroshi OHTANI;Kiyohito ISHIDA .The control of the morphology of MnS inclusions in steel during solidification[J].ISIJ International,1995(4):402-408. |
| [9] | Masamitsu WAKOH;Takashi SAWAI;Shozo MIZOGUCHI .Effect of S Content on the MnS Precipitation in Steel with Oxide Nuclei[J].ISIJ International,1996(8):1014-1021. |
| [10] | Li J;Guo F;Li Z et al.Influence of Sizes of Inclusions and Voids on Fracture Toughness of Ultra-High Strength Steel Aermetl00[J].J Iron Steel Research Inter,2007,14:254. |
| [11] | Garrison WM;Wojcieszynski AL .A discussion of the effect of inclusion volume fraction on the toughness of steel[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2007(1-2):321-329. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%