“A A REVIEW IN SCRATCH DETERIORATION PATTERNS FOR POLYMER AND ITS COMPOSITES: Abstract, Introduction,Friction and Wear Mechanism of Polymers, Polymer and Polymer Composite, Conclusions”. THE IRAQI JOURNAL FOR MECHANICAL AND MATERIALS ENGINEERING, vol. 20, no. 2, June 2020, pp. 87-96, https://doi.org/10.32852/iqjfmme.v20i2.490.