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新材料--高性能轻合金材料研发

​New materials, high performance light alloy materials research and development​​​

       成功开发JDA1、JDA2镁/铝合金新材料，填补国内空白，开创了镁合金阻燃技术新途径，获教育部技术发明二等奖和国防科技进步二等奖。采用全新的设计理念研发了非热处理型高强高韧压铸铝合金材料以及热处理强化型超高强度铸造铝合金材料，在国际上处于同类材料的领先水平，为汽车行业对轻质高强材料的迫切需求提供技术支撑。

Successfully developed JDA1, JDA2 magnesium/aluminum alloy new material, fill the domestic blank, started a new way of flame retardant of magnesium alloy technology, invention second prize by the Ministry of Education technology and the national defense science and technology progress second prize. Using the design concept of new developed non heat treatment of die casting aluminum alloy with high strength and high tenacity material and heat treatment strengthening type ultra high strength casting aluminum alloy material, is in the leading level of similar material in the world, for the automotive industry to provide technical support for the urgent need of lightweight high strength material.

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纳米析出强化​​

Nano precipitation strengthening

共晶变质机理研究​

Eutectic metamorphic mechanism research

晶粒细化​

Grain refinement

共晶相变质细化​

Refine eutectic phase metamorphism

强化机制分析

Strengthening mechanism analysis

T5处理后晶内的析出相

T5 treatment after the intracrystalline precipitated phase

高性能合金材料

High-performance alloy material


JDA1 型材料

JDA1 NEW ALLOY MATERIAL

JDA1b 型材料 

JDA1b NEW ALLOY MATERIAL

工程应力-应变曲线

The engineering stress-strain curve

自时效对力学性能的影响

Since the aging effect on the mechanical properties


厚大部位组织特征

Most of thick organization characteristics

边部组织特征

Organization of edge feature

电池箱盖板

Battery box cover plate


发动机支架

​Engine mounts

零件设计

Parts design

屈服强度（MPa）:140-150

抗拉强度（MPa）:260-270

延伸率（%）：12-15

特点：非热处理高韧性 （可根据客户需要做T5热处理）


屈服强度（MPa）:180-200

抗拉强度（MPa）:300-330

延伸率（%）：6-8

特点：非热处理自强化（可根据客户需要做T5热处理）

Yield strength (MPa) : 180-200
Tensile strength (MPa) : 300-330
Elongation (%) : 6-8
Features: the heat treatment since the reinforcement (according to customer needs to do T5 heat treatment)
Yield strength (MPa) : 140-150
Tensile strength (MPa) : 260-270
Elongation (%) : 12-15
Features: the heat treatment and high toughness (according to customer needs to do T5 heat treatment)

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JDA2b 型材料  

JDA2b NEW ALLOY MATERIAL​​

JDA2 型材料 

JDA2 NEW ALLOY MATERIAL

应变速率对拉伸性能影响

The strain rate effect on tensile properties

典型微观组织特征

The typical microstructure characteristics

温度对力学性能的影响

The influence of temperature on the mechanical properties

减震塔

Shock  tower

电梯梯级

The elevator cascade

减震塔

Shock  tower

电池箱体

Battery box body

屈服强度（MPa）:140-150

抗拉强度（MPa）:260-270

延伸率（%）：15-20

特点：非热处理高韧性（可根据客户需要做T5热处理）

屈服强度（MPa）:160-180

抗拉强度（MPa）:300-320

延伸率（%）：15-20

特点：非热处理高韧性（可根据客户需要做T5热处理）


Yield strength (MPa) : 160-180
Tensile strength (MPa) : 300-320
Elongation (%) : 15-20
Features: the heat treatment and high toughness (according to customer needs to do T5 heat treatment)
Yield strength (MPa) : 140-150
Tensile strength (MPa) : 260-270
Elongation (%) : 15-20
Features: the heat treatment and high toughness (according to customer needs to do T5 heat treatment)


交大合金新材料

NEW ALLOY MATERIALS OF SHANGHAI JIAOTONG UNIVERSITY

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JDA1-已应用在凯迪拉克CT6  

JDA1- HAS BEEN APPLIED IN CADILLAC CT66

JDA1是上海交通大学轻合金国家工程研究中心丁文江院士、彭立明教授带队历经6个月,自主研发的一款铝硅系材料,于2015年3月一次性通过北美通用汽车的新材料量产审核,并正式纳入北美通用材料清单,在凯迪拉克CT6中应用。
 Jdal is an aluminum silicon series material independently developed by Ding Wenjiang, academician of Shanghai Jiaotong University light alloy National Engineering Research Center and Professor Peng Liming after six months. In March 2015,jdal
 passed the mass production audit of new materials of North American general motors, and was formallyinclude in the North American general material list, and was applied in Cadillac CT6.

高韧性延展佳

轻量化适用广

高强度抗冲击

JDA1压铸后无无需热处理，常规压铸后4-72小时后即可达到德国S付6-T6材料热处理后性能，减少大型薄壁件热处理变形需矫正的要求。

JDA1保证抗拉强度的同时极大提升了延伸率。

JDA1适合车身结构件（四门两盖/车身关键结构件等）、底盘抗冲击结构件（电动化电池组托盘、发动机安装支架等）。在保证强度的前提下，重量减轻26%，超出通用预定的20%的目标。