Effect of Solid Solution Treatment on Structure and Mechanical Properties of Nickel Base Alloy GH4700

李阳; 李莎; 王岩

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Effect of Solid Solution Treatment on Structure and Mechanical Properties of Nickel Base Alloy GH4700

更新时间：2026-01-21

- Effect of Solid Solution Treatment on Structure and Mechanical Properties of Nickel Base Alloy GH4700
- Special Steel Vol. 34, Issue 3, Pages: 64-66(2013)
- 作者机构：
  
  太原钢铁(集团)有限公司先进不锈钢材料国家重点实验室,太原,030003
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：25 December 2012，
  
  Online First：22 September 2022，
  
  Published：22 September 2013
- 稿件说明：
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李阳, 李莎, 王岩. Effect of Solid Solution Treatment on Structure and Mechanical Properties of Nickel Base Alloy GH4700[J]. Special Steel, 2013, 34(3): 64-66.
DOI：

李阳, 李莎, 王岩. Effect of Solid Solution Treatment on Structure and Mechanical Properties of Nickel Base Alloy GH4700[J]. Special Steel, 2013, 34(3): 64-66. DOI：

摘要

研究了1 000～1 150℃固溶处理对GH4700合金(/%:0.05C、25Cr、20Co、1.65Nb、1.47Al、1.69Ti

余Ni)组织及力学性能的影响:结果表明

1 180℃挤压空冷后Φ89 mm×15 mm GH4700管材的抗拉、屈服强度和伸长率分别为1 150 MPa、780 MPa和36%;合金在1 000～1 060℃固溶处理

随着温度的提高

γ’相逐渐溶入基体

合金晶粒明显长大

强度显著降低

塑性显著升高;在1 090～1 150℃随着温度的提高

晶粒长大趋势不明显

合金强度和塑性的变化趋势放缓。1 150℃固溶处理后GH4700合金抗拉强度800 MPa

屈服强度330 MPa

伸长率65%。

Abstract

The effect of solid solution treatment at 1 000 ~ 1 150 Y on structure and mechanical properties of alloy GH4700 (/% : 0. 05C

25Cr

20Co

1. 65Nb

1. 47A1

1. 69Ti

bal Ni) has been studied. Results show that the tensile

yield strength and elongation of 4>89 mm x 15 mm GH4700 alloy tube extruded at 1 180 °C

air cooling are respectively 1 150 MPa

780 MPa

and 36% ; as the alloy solid-solution-treaded at 1 000 ~ 1 060 ℃ with increasing temperature the γ’ phase gradually dissolves into the matrix

the grains of alloy grow obviously

the strength decreases markedly and the plasticity rapidly increases; at 1 090 ~ 1 150 °C the trend of grain growth is not appreciable

the change trend of strength and plasticity of alloy is very slow； with solid-solution-treated at 1 150 ℃，the tensile strength

yield strength and elongation of alloy GH4700 are respectively 800 MPa

330 MPa and 65%.

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