| 奥氏体晶粒尺寸对45V非调质钢组织和性能的影响 |
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| 引用本文： | 张克勤.奥氏体晶粒尺寸对45V非调质钢组织和性能的影响[J].燕山大学学报,2000,24(2):145-147. |
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| 作者姓名： | 张克勤 |
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| 作者单位： | 燕山大学材料科学与化学工程学院,秦皇岛,066004 |
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| 摘 要： | 研究了４５Ｖ钢初始状态奥氏体晶粒尺寸对其组织和性能的影响，得出显微组织和力学性能的关系。结果表明，随相变前奥氏体晶粒尺寸增大，铁素体数量减小，硬度与强度提高，塑性降低。４５Ｖ钢先共析铁素体体积分数（ｆα）与硬度（ＨＶ）、缺口试样的强度（σｂＮ）和塑性（ΨＮ）的关系为ＨＶ＝３７０－４２Ｆα１／３，σｂＮ＝１４６６－１１１０ｆα１／３，ΨＮ＝３２＋０．５７ｆα。
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| 关 键 词： | 45V钢 相变点 力学性能 非调质钢 |
Effect of Austenite Grain Size before Transformation on Microstructure and Properties of 45V Steel |
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| Zhang Keqin.Effect of Austenite Grain Size before Transformation on Microstructure and Properties of 45V Steel[J].Journal of Yanshan University,2000,24(2):145-147. |
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| Authors: | Zhang Keqin |
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| Abstract: | The effect of austenite grain size before trans- formation on microstructure and properties of 45V steel is in- vestigated. Moreover the relation between the microstructure and properties is discussed. The result shows that as the aus- tenite grain size before transformation gets large, the vol- ume fraction offerrite decreases, the hardness and strength in- crease, and the plasticity decreases. The relationships of the amount offerrite ) and hardness (HV),strength () and plas- ticity () can be described as the following : |
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| Keywords: | 45Vsteel transformation point mechanical prop- erty |
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