NZ30K镁合金时效析出动力学与强化模型的研究<sup>*</sup>

NZ30K镁合金时效析出动力学与强化模型的研究^*

王小娜, 韩利战, 顾剑锋

PRECIPITATION KINETICS AND YIELD STRENGTH MODEL FOR NZ30K-Mg ALLOY

WANG Xiaona, HAN Lizhan, GU Jianfeng

表1 NZ30K镁合金等温时效处理后试样的相对析出体积分数和屈服强度

Table 1 The relative precipitation volume fraction and yield strength of NZ30K-Mg alloy isothermally aged with different conditions ( σ_y —yield strength)

Specimen No.	T / ℃	t / h	$α_{r}$ / %	$σ_{y}$ / MPa
1	180	1	0.111	109.71
2	180	2	0.174	111.43
3	180	5	0.269	122.25
4	180	10	0.332	125.68
5	180	20	0.397	131.29
6	180	50	0.513	133.39
7	180	100	0.684	141.19
8	180	200	0.897	148.88
9	200	1	0.197	127.43
10	200	2	0.282	135.24
11	200	5	0.397	138.00
12	200	10	0.504	144.44
13	200	20	0.697	148.50
14	200	50	0.941	151.53
15	250	0.25	0.304	138.28
16	250	0.5	0.548	148.89
17	250	0.75	0.717	149.60
18	250	1	0.850	152.59