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NASA马歇尔航天飞行中心的2名科学家研制了一种新型高强度铝-硅合金,可以减小零部件的质量和成本,降低车、船等发动机的排放量,提高里程,提高发动机的性能和耐久性。这项工作始于7年前,原本打算研制1种高强度低成本的铝合金用于活塞设计上。这种铝合金代号为MSFC-398,在500～700 F的高温下表现出的强度很大。实际上,在600 F的测试中,这种合金材料比普通的铝合金强度要大3～4倍。这种材料成本也很低,生产1磅（约0.454kg）的费用不到1美元。 这种高强度铝合金是高温铸件的理想选择,能以液态被重新铸造成不同的形状,从而可以降低铸造零
Two scientists at the NASA Marshall Space Flight Center have developed a new high-strength aluminum-silicon alloy that reduces the quality and cost of components, reduces engine, vehicle and boat emissions, increases mileage and improves engine performance and durability Sex. The work began seven years ago, originally intended to develop a high-strength low-cost aluminum for piston design. This aluminum alloy, code-named MSFC-398, shows great strength at temperatures between 500 and 700 F. In fact, in the 600 F test, this alloy material is 3 to 4 times stronger than the average aluminum alloy. The cost of this material is also very low, producing 1 pound (about 0.454kg) for less than a dollar. This high-strength aluminum alloy is ideal for high temperature castings and can be re-cast in liquid form into different shapes to reduce casting zero