Effect of Stress Relieving Heat Treatment On Microstructure and Properties of 12CrNi5MoV Forged Steel
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摘要: 研究了原始态和消应力热处理态12CrNi5MoV锻钢的组织与性能,结果表明,经消应力热处理后,12CrNi5MoV锻钢的强度和塑性与原始态试样的相比变化不大,而冲击韧性明显降低,锻钢发生明显脆化。试验用12CrNi5MoV锻钢含有一定量的P及易引发回火脆性的Ni、Cr、Si、Mn等元素,是发生脆化的根本原因。
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关键词:
- 12CrNi5MoV锻钢 /
- 消应力热处理 /
- 脆化 /
- 沿晶断裂 /
- 晶界偏聚
Abstract: The microstructures and properties of 12CrNi5MoV forged steel before and after stress relieving heat treatment are studied. The results show that the strength and plasticity of 12CrNi5MoV forged steel after stress relieving heat treatment have little change compared with those of the original sample, that the impact toughness reduces, and that obvious embrittlement occurs. The root cause of the embrittlement is that the 12CrNi5MoV forged steel contains a certain amount of P and Ni, Cr, Si, Mn and other elements that are easy to cause temper brittleness. -
[1] 黄金祥,侯延斌. P690 QL1钢制LPG船C型舱消应力热处理研究[J].压力容器, 2022, 39(8):22-27. [2] 王任甫,姚智颖,邓晚平,等.低合金钢消应力热处理研究进展[J].材料开发与应用, 2021, 36(3):86-94. [3] 崔忠圻.金属学与热处理[M].北京:机械工业出版社, 1995. [4] KRAUSS G.钢的热处理原理[M].李崇谟,译.北京:冶金工业出版社, 1987. [5] MCLEAN D, NORTHCOTT R. Grain boundary segregation[J]. J. Iron Steel Inst., 1948, 158:169-177. [6] 《钢铁热处理》编写组.钢铁热处理:原理及应用[M].上海:上海科学技术出版社, 1979. [7] STEVEN W, BALAJIVA K. The Influence of miner elements on the isothermal embitterment of steels[J]. Journal of Iron Steel Institute, 1959, 193:141-147. [8] LOW J, STEIN D F, TURKALO A M, et al. Alloy and impurity effects on temper brittleness of steel[J]. Trans Met Soc AIME, 1968, 242(1):14-24. [9] 董鑫.镁添加对不同磷含量的2.25Cr1Mo钢第二类回火脆性的影响[D].沈阳:沈阳工业大学, 2021. -
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