| 轴承钢GCr15的恒温相变超塑性 |
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| 引用本文： | 阳永春,何锦学.轴承钢GCr15的恒温相变超塑性[J].热加工工艺,1994(2):23-24,40. |
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| 作者姓名： | 阳永春 何锦学 |
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| 作者单位： | 北京机电研究所 |
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| 摘 要： | 研究了ＧＣｒ１５钢在Ａｃ１相变点附近的恒温超塑性特性与变形温度的关系。结果表明，与一些材料一样，该钢也存在恒温相变超塑性现象。当初始应变速率为２．５×１０＾－４ｓ＾－１时，经预调质处理的ＧＣｒ１５钢试样，在７４８℃进行超塑性拉伸试验获得最大延伸率达８００％，流动应力为２４ＭＰａ。与已有的同类研究结果相比，其延伸率提高了２００％以上。
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| 关 键 词： | 超塑性 恒温相变 轴承钢 |
Constant Temperature Transformation Superplasticity of GCr15 Bearing Steel |
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| Yang Yongchun,He Jinxue.Constant Temperature Transformation Superplasticity of GCr15 Bearing Steel[J].Hot Working Technology,1994(2):23-24,40. |
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| Authors: | Yang Yongchun He Jinxue |
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| Affiliation: | Yang Yongchun;He Jinxue |
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| Abstract: | The reserearch of constant temperature transformation superplasticity of GCr15 steel was studied.The results show that the elongation of GCr15 steel increases obviously near the phase transformation temperature Ac1,which is up to 800%. At the same time the flow strees is minimum. The writings explores the mechanism of constant temperature transformation superplasticity. |
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| Keywords: | superplasticity constant temperature transformation GCr15 steel |
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