在实验室模拟CSP工艺的加热条件，对30CrMo钢进行试验，用金相法测量脱碳层厚度，用失重法对30CrMo钢的氧化层厚度进行估算，结合氧化烧损研究了加热温度和保温时间对30CrMo钢的实际脱碳层厚度的影响规律。结果表明，在试验气氛为（体积分数，%）CO216.5、O20.8、H2O13、N269.7，加热温度范围为1000～1150℃时，30CrMo钢的实际脱碳层厚度随着加热时间的增加而增加，低于1050℃时，脱碳层厚度随着温度升高而增加，高于1050℃时，脱碳层由于氧化加剧而减少，1050℃为脱碳敏感温度。
An experiment simulating the heating environment of CSP furnace was performed for 30CrMo steel. The de-carburization layer depth was measured by micrographic method. And the oxide layer thickness was calculated by meth-od of weight loss. The effect of heating temperature and holding time on the 30CrMo steel decarburization layer depth was studied combined with oxidation loss. The results show the decarburization layer depth increases gradually with in-creasing the holding time when sample is heated at 1 000-1 150 ℃ under the experimental atmosphere (volume per-cent,%)CO216.5,O20.8,H2O13,N269.7. The decarburization layer depth increases gradually with increaseing the heating temperature below 1 050℃. The layer depth gradually decreases when the temperature is over 1 050℃due to the se-vere oxidation. The decarburization layer depth reaches the peak at 1 050℃.
参考文献
| [1] | 郑洋;李卫.薄板坯连铸连轧30CrMo带钢的组织与力学性能[J].热加工工艺,2013(9):143-146. |
| [2] | 陈银莉;左茂方;罗兆良;孙蓟泉.60Si2Mn弹簧钢表面脱碳理论及试验研究[J].材料热处理学报,2015(1):192-198. |
| [3] | 肖金福;刘雅政;张朝磊;姜超.弹簧钢55SiCrA脱碳规律的研究[J].金属热处理,2010(12):94-98. |
| [4] | 王猛;陈伟庆;郝占全;张延玲.加热期间弹簧钢55SiCr表面脱碳的影响因素研究[J].河南冶金,2010(2):12-14,52. |
| [5] | 曹杰;项长祥;陈冬;秦茶;李联生.几种高速钢的氧化脱碳行为[J].北京科技大学学报,2000(1):16-18,30. |
| [6] | 佟倩;张玮;柳洋波;王立峰.55SiCr弹簧钢表面脱碳的研究[J].上海金属,2013(2):27-31. |
| [7] | 曹安然;李玉芳;王剑;韩茂栋.弹簧钢55SiCr氧化与脱碳特性的研究[J].金属热处理,2010(9):51-55. |
| [8] | 田亚强;杨子旋;宋进英;魏英立;陈连生.加热工艺参数对冶金锯片用65Mn钢脱碳行为的影响[J].金属热处理,2013(7):104-109. |
| [9] | 白力静;梁戈;李虹燕;李均明.常用中碳钢氧化特性研究[J].西安工业学院学报,2005(5):460-464. |
| [10] | 温宏权;向顺华;张永杰;韩茂栋;陶曙明.60Si2Mn弹簧钢加热温度对表面脱碳的影响[J].宝钢技术,2008(3):44-47. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%