CAJ | 학술논문

块体非晶合金因其独特的原子结构而具有许多优异的力学性能，成为近年来材料领域的研究热点之一，但是由于其在变形过程中的室温脆性和应变软化等关键问题，一直制约其大规模工程应用。为解决此问题，块体非晶合金领域的研究者们提出了多种方案，其中利用“相变诱导塑性”概念制备块体非晶合金复合材料来韧塑化非晶合金成为卓有成效的方案之一，通过此方法成功地制备出同时具有拉伸塑性和加工硬化能力的非晶合金复合材料。然而，该类块体非晶合金复合材料要求的形成条件更严格，同时具有更复杂的多相协调变形过程和更独特的性能优化方案。从该类块体非晶合金复合材料的形成、性能特点、韧塑化机理及性能优化等方面进行综述，并对其未来发展进行了简要展望。
괴체비정합금인기독특적원자결구이구유허다우이적역학성능，성위근년래재료영역적연구열점지일，단시유우기재변형과정중적실온취성화응변연화등관건문제，일직제약기대규모공정응용。위해결차문제，괴체비정합금영역적연구자문제출료다충방안，기중이용“상변유도소성”개념제비괴체비정합금복합재료래인소화비정합금성위탁유성효적방안지일，통과차방법성공지제비출동시구유랍신소성화가공경화능력적비정합금복합재료。연이，해류괴체비정합금복합재료요구적형성조건경엄격，동시구유경복잡적다상협조변형과정화경독특적성능우화방안。종해류괴체비정합금복합재료적형성、성능특점、인소화궤리급성능우화등방면진행종술，병대기미래발전진행료간요전망。
Bulk metallic glasses (BMGs)show unique mechanical properties due to their long-range disordering atomic structure and are regarded as one of the promising engineering materials.But their room-temperature brittleness and strain-softening during deformation have been a stumbling block for practical structural applications.To solve this problem,many approaches have been developed among which the concept of“transformation-induced plasticity”(TRIP)was proved to be effective to enhance both tensile ductility and work-hardening capability of metallic glasses.BMG composites with not only tensile ductility but also work-hardening capability have been successfully fabricated by this approach.However,the TRIP-phase-reinforced BMG composites have unique formation and deformation mechanisms.In this brief review,the for-mation,deformation behavior,optimizing strategies and ductilizing mechanism were summarized and the potential develop-ments were also discussed.