新型低合金含量烘烤硬化镁合金研究进展及展望

王慧远, 孟昭元, 贾海龙, 徐新宇, 花珍铭

Research Progress and Future Prospect on New Low-Alloyed Bake-Hardenable Magnesium Alloys

WANG Huiyuan, MENG Zhaoyuan, JIA Hailong, XU Xinyu, HUA Zhenming

表1 低合金含量烘烤硬化镁合金与烘烤硬化钢/铝合金的力学性能^[31~36]

Table 1 Mechanical properties of low-alloyed bake-hardening Mg alloys and bake-hardening steels/aluminum alloys^[31-36]

Alloy	Processing	YS MPa	UTS MPa	EL %	BH mechanism	Ref.
	Processing	YS MPa	UTS MPa	EL %		Ref.
Mg-1.0Zn-0.45Ca-0.33Sn-0.2Mn	Annealed	265	291	24.6	Solute segregation at dislocations	[31]
	BH	297	301	21.9		[31]
Mg-2.0Zn-0.5Ca	T4	95	208	12.0	Solute segregation at dislocations and twin boundaries	[32]
	BH	200	244	17.0	Solute segregation at dislocations and twin boundaries	[32]
Mg-1.61Zn-0.57Mn-0.54Ca-0.46Al	T4	234	288	21.1	GP zone strengthening	[33]
	BH	293	316	19.2		[33]
AA6016 Al alloy	PA	122	234	27.8	Mg-Si cluster strengthening	[34]
	BH	223	291	22.7		[34]
AA6111 Al alloy	T4	150	268	19.2 (UL)	Precipitate strengthening	[35]
	PFHT	280	325	10.9 (UL)
	BH	289	331	10.5 (UL)
B180H1 Steel	BH	241	352	38.0	Solute segregation at dislocations	[36]